Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having a first inner surface and a first outer surface. The first inner surface defines a first central bore extending along a length of the optical fiber cable, and the first outer surface defines an outermost surface of the optical fiber cable. A buffer tube is disposed within the first central bore, and the buffer tube has a second inner surface and a second outer surface. The second inner surface defines a second central bore having an inner diameter and extending along the length of the buffer tube. A plurality of optical fibers is disposed within the second central bore of the buffer tube. A first yarn and a second yarn are disposed within the second central bore and are wrapped around the plurality of optical fibers.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/46 - Procédés ou appareils adaptés à l'installation de fibres optiques ou de câbles optiques
G02B 6/54 - Installation souterraine ou sous l'eau; Installation à travers des tubes, des conduits ou des canalisations en utilisant des moyens mécaniques, p.ex. des dispositifs pour tirer ou pousser
H01B 7/00 - Conducteurs ou câbles isolés caractérisés par la forme
2.
LOW MELTING GLASS POWDER USED AS ADDITIVE FOR FLAME RETARDANT COMPOSITION
Embodiments of a flame retardant composition are provided. The flame retardant composition includes 30 wt% to 50 wt% of a polymer component and 50 wt% to 70 wt% of a filler component. The filler component includes a flame retardant powder and a glass powder. A weight ratio of the flame retardant powder to the glass powder is from 1:1 to 11:1. The glass powder is formed from a lead-free phosphate glass having a glass transition temperature of at most 550 °C and a softening point of at most 700 °C. The flame retardant composition can be used to form a component of an optical fiber cable.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central bore extending along a length of the optical fiber cable, and the outer surface defines an outermost surface of the optical fiber cable. A central strength member is disposed within the central bore. At least one buffer tube, containing a plurality of optical fibers, is disposed within the central bore. At least one filler rod is disposed within the central bore. The at least one buffer tube and the at least one filler rod are stranded around the central strength member. Each of the at least one filler rod includes a strength member and a polymer coating disposed around the strength member. The strength member is a fiber-reinforced plastic rod.
Provided are embodiments of a lumen. The lumen includes a plurality of optical fibers and a membrane surrounding the plurality of optical fibers. A thickness of the membrane is 50 μm or less. Further, the membrane is made from a polymer composition including a polymer component and a filler component, and the polymer composition includes 30 wt% or less of the filler component. The filler component has a specific surface area of at least 3 m2/g. The lumen may be incorporated into a high fiber density optical fiber cable. Also disclosed are embodiments of a method of forming the lumen and optical fiber cable.
Fiber optic connectors having an outer housing comprising a longitudinal open slot disposed on a first side and a latching trigger disposed on a second side are disclosed. The longitudinal open slot of the outer housing allows easy removal and/or replacement of the outer housing by simplifying the assembly of the connector as well as enabling inspection or service as needed. The outer housing may also include a transverse wall at the rear end for providing a ferrule assembly position assurance when the outer housing is properly attached to the optically mated fiber optic connector. Connectors may use fiber-based or lens-based optical interfaces along with other optional features such as sealing gasket disposed on the ferrule assembly to protect when mated, a sealing membrane disposed on a front opening of the connector housing for inhibiting moisture, dirt, debris or dust from reaching the optical interface prior to optical mating.
A fiber optic cable assembly includes a fiber optic cable carrying a plurality of optical fibers and a plurality of distribution housings attached to the fiber optic cable at spaced locations along a length of the fiber optic cable. A subset of the plurality of optical fibers carried by the fiber optic cable is terminated at each of the plurality of distribution housings. Each of the plurality of distribution housings includes at least one port interface attached to the respective distribution housing for accessing the subset of optical fibers terminated at the respective distribution housing. The distribution housings are in-line with the cable and have a low-profile for ease of installation. A method of using and making such a fiber optic cable assembly is also disclosed.
An optical connector (10) includes a connector sub-assembly (12), an inner housing (40) that receives a rear portion of the connector sub¬ assembly (12), a boot (44) extending from the inner housing (40), and an outer housing (42) coupled to the boot (44). The outer housing (42) and the boot (44) are configured to allow relative rotation about a longitudinal axis of the optical connector (10) but can move together along the longitudinal axis. The boot (44) can be rotated relative to the inner housing (40) between a locked position in which the outer housing (42) is prevented from moving axially and depressing the end portion of a latch arm (26) of the connector sub-assembly (12), and an unlocked position in which the outer housing (42) can move axially to depress the end portion of the latch arm (26).
Embodiments of the disclosure relate to a duct for an optical fiber cable. The duct includes a tubular wall having an inner surface and an outer surface. The inner surface defines a longitudinal bore. A plurality of strength elements is disposed within the tubular wall. The plurality of strength elements is formed from yarns that are not combustible at a temperature below 900 °C. Also disclosed are embodiments of a method of forming such a duct. In the method, a flame retardant polymeric composition is extruded to form the tubular wall, and the plurality of strength elements are embedded in the tubular wall. It is expected that the combination of an optical fiber cable having a flame retardant rating and such a duct will maintain the flame retardant rating when the optical fiber cable is disposed within the longitudinal bore of the duct.
Embodiments of the disclosure relate to a fiber distribution system. The fiber distribution system includes an optical fiber cable with a cable jacket having an inner surface, an outer surface, and an opening extending through the inner surface and the outer surface. Optical fibers are disposed within the central bore, and optical fibers include a first optical fiber that extends from the central bore through the opening of the cable jacket. An optical splitter is disposed outside of the optical fiber cable, and the first optical fiber is optically coupled to a first end of the optical splitter. At least two optical fibers are optically coupled to a second end of the optical splitter. An overmold surrounds the opening of the cable jacket and the optical splitter.
The present disclosure relates to a multi-fiber ferrule having a plurality of bores where each bore has an adjacent divider that separates the bores. The divider also facilitates insertion of an optical fiber into each bore.
A fiber optic cable includes an outer jacket, a plurality of optical fibers within the outer jacket, and a pull grip at an end of the fiber optic cable for pulling the cable through a pathway during installation of the cable. The pulling of the fiber optic cable through the pathway causes a tensile load to be imposed on the fiber optic cable. To accommodate the tensile load, the fiber optic cable further includes a load distribution member coupled to the pull grip and to the plurality of optical fibers. The load distribution member distributes the tensile load on the fiber optic cable over the plurality of optical fibers such that the plurality of optical fibers collectively provides the tensile strength to support the tensile load during routing of the fiber optic cable through the pathway. In this way, strength members may be omitted from the design of the cable and more optical fibers may fit within existing pathways. A method of making and a method of using such a fiber optic cable is also disclosed.
G02B 6/54 - Installation souterraine ou sous l'eau; Installation à travers des tubes, des conduits ou des canalisations en utilisant des moyens mécaniques, p.ex. des dispositifs pour tirer ou pousser
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
12.
METHOD AND SYSTEM FOR CONTROLLING THE TENSION ON A BUFFER TUBE BY A COMPRESSION CATERPILLAR ON A BUFFERING LINE
Embodiments of the disclosure relate to a method of controlling tension on a buffer tube produced on a buffer tube processing line. In the method, the buffer tube is directed through a compression caterpillar. A speed of and a gap between drive belts of the compression caterpillar are set to achieve a desired tension on the buffer tube. Tension on the buffer tube is measured as the buffer tube passes between the drive belts. It is determined whether the measured tension on the buffer tube is within an acceptable range, and the gap between the drive belts is decreased in increments while the buffer tube passes between the drive belts until the tension is within the acceptable range.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
D21F 11/04 - Procédés de fabrication de longueurs continues de papier ou de carton, ou de nappe humide pour la production de panneaux de fibres, sur des machines à papier du type Fourdrinier papier ou carton composé de plusieurs couches
13.
OPTICAL FIBER HAVING THIN COATING DIAMETER WITHOUT INCREASED MICROBEND SENSITIVITY
Embodiments of the disclosure relate to an optical fiber. The optical fiber includes a glass core and a glass cladding surrounding the glass core. The glass cladding defines a glass diameter of the optical fiber. A primary coating surrounds the glass cladding, and the primary coating has a first elastic modulus and a first thickness. A secondary coating surrounds the primary coating, and the secondary coating has a second elastic modulus and a second thickness. The second elastic modulus is greater than the first elastic modulus, and the second thickness is as thick or thicker than the first thickness. The optical fiber has an outer surface defining a fiber diameter in a range from 160 microns to 175 microns. The glass diameter of the optical fiber is in a range from 100 microns to 130 microns.
G02B 6/036 - Fibres optiques avec revêtement le noyau ou le revêtement comprenant des couches multiples
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
14.
TEARABLE LUMEN FOR USE IN HIGH FIBER DENSITY OPTICAL FIBER CABLE
Provided are embodiments of a lumen. The lumen includes a plurality of optical fibers and a membrane surrounding the plurality of optical fibers. A thickness of the membrane is 80 microns or less, and a free space within the membrane is 50% or less. Further, the membrane has a tear strength of 10 mN/mm or less as measured according to ASTM D1938 - 19. A plurality of such lumens can be combined together to form a cable core around which a cable jacket is extruded to provide a high fiber density optical fiber cable.
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
An expanded beam connector and method of making the same is provided herein. The expanded beam connector includes an array of spliced optical fibers, each spliced optical fiber including a first optical fiber and a second optical fiber spliced to the first optical fiber at a splice position. The second optical fiber defines a fiber length extending between the splice position and the cut position configured as a quarter-pitch length. At the quarter-pitch length, a wave transmission through the second optical fiber causes the wave to collimate at the cut position. The expanded beam connector further includes a connector surrounding at least the splice position of each spliced optical fiber within the array of spliced optical fibers.
Male plug fiber optic connectors and a conversion adapter for mating with a dissimilar connector are disclosed along with cable assemblies using the same, thereby providing backwards compatibility with existing optical networks. The fiber optic connector comprises a ferrule, a connector housing having a female key disposed on the outer surface along with a threaded portion integrally formed on the connector housing, and a nose-piece having a pocket disposed at a front portion. The pocket of the nose-piece is configured for allowing optical mating with a dissimilar connector using the conversion adapter for legacy connectivity while also mating with other devices without using the conversion adapter. In one embodiment, the conversion adapter comprises a retainer that cooperates with the threaded portion of the connector housing for securing the conversion adapter to the male plug fiber optic connector. The fiber optic connectors disclosed advantageously allow for optical mating with dissimilar optical connectors with a quick and easy assembly for rugged applications or other optical communication networks.
A burn chamber (1) for conducting a burn test of a cable (2) includes a housing (10) for housing the cable (2) during cable burn testing, a supporting device (20) for supporting the cable (2), and the supporting device (20) being arranged in the burn chamber (1), a burner (30) being configured to produce a flame which is suitable to ignite the cable (2). The supporting device (20) is arranged in the burn chamber (1), and the burner is arranged in the burn chamber (1) at a distance above a bottom of the burn chamber (1). A surface of an inner wall (11) of the housing (10) is configured to have an emissivity in a range between 0.7 and 1.0.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central bore extending along a longitudinal axis of the optical fiber cable. The optical fiber cable also includes a plurality of subunits disposed within the central bore. Each subunit includes a plurality of optical fibers. The plurality of optical fibers includes at least one water-blocking optical fiber. The at least one water-blocking optical fiber has an outermost coating layer of a UV-cured resin configured to absorb at least 20 grams of water per gram of the UV-cured resin. The optical fiber cable has a cross-sectional area defined by the outer surface of the cable jacket. The optical fiber cable has a fiber density of at least 4 fibers/mm2 as measured at the cross-sectional area.
Multi-core fiber optic ribbons (24), cable assemblies (38), connectors (40, 70, 98, 100), structured cabling systems (84), and methods of making same. Multicore optical fibers (10) are arranged relative to each other so that the core patterns have mirror-image symmetry at both ends of a fiber optic ribbon (24). Connectors (40, 70, 98, 100) are configured so that the end faces (16) of the multicore optical fibers (10) are placed in the connector interface (62) to define a connector core pattern having mirror-image symmetry about an interface axis of symmetry (64). Cabling systems (84) include a multicore fiber optic cable assembly (38) and a plurality of network components (88, 90). One half of the multicore optical fibers (10) in the cable assemblies (38) have a first draw direction, and the other half of the multicore optical fibers (10) have a second draw direction opposite the first draw direction. Network components (88, 90) include port connectors (70) having the connector core pattern.
Embodiments of an optical component are provided. The optical component includes an optical container formed from a polymeric composition and an optical element having at least one optical fiber. The optical element is disposed within the optical container. The polymeric composition includes a polymer component and a first aversive additive dispersed in the polymer component. The first aversive additive includes first inorganic particles having an open structure and a chemical aversive material infused into the first inorganic particles. Also provided are embodiments of an optical container made from a polymer composition containing an aversive additive and a method of forming same.
G02B 6/27 - Moyens de couplage optique avec des moyens de sélection et de réglage de la polarisation
G02B 6/40 - Moyens de couplage mécaniques ayant des moyens d'assemblage de faisceaux de fibres
G02B 6/00 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage
Embodiments of a low-smoke, zero halogen (LSZH) composition for forming a foamed cable jacket are provided. The LSZH composition includes a polymer component, and an LSZH flame retardant package dispersed in the polymer component. The LSZH composition further includes a chemical foaming agent that is present in an amount up to 5% by weight of the LSZH composition and a melt strength enhancer that is present in an amount up to 1 % by weight of the LSZH composition. Also provided are embodiments of an optical fiber cable having a cable jacket surrounding a cable core.
H01B 7/295 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures par des températures extrêmes ou par les flammes en utilisant un matériau résistant aux flammes
H01B 3/30 - Isolateurs ou corps isolants caractérisés par le matériau isolant; Emploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques cires
H01B 7/18 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures par l'usure, la contrainte mécanique ou la pression
22.
FIBER OPTIC CABLE ASSEMBLIES HAVING A TEMPORARY PACKAGING FOR PROTECTING MATING INTERFACES
The disclosure is directed to a fiber optic cable assembly having a temporary packaging useful for protecting the mating interface of connectors of the cable assembly until mating of the connectors is desired. The cable assemblies and temporary packaging concepts enable quick and easy removal of the protective features of the temporary packaging and allow convenient packaging for cable assemblies along with other benefits. The temporary packaging may comprise a first dust cap and a second dust cap attached to a common part for removing the dust cap when separating the temporary packaging from the fiber optic cable assembly or the protective features may be integrally-formed with the protective packaging. The temporary package may include a container and a portion of the temporary packaging may be removable from the container. A method for installing cable assemblies having temporary packaging is also disclosed.
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
B65D 85/04 - Réceptacles, éléments d'emballage ou paquets spécialement adaptés à des objets ou à des matériaux particuliers pour des objets de forme annulaire pour bobines de fil métallique, cordes ou tuyaux souples
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
23.
OPTICAL FIBER CABLE INCLUDING OPTICAL FIBERS ORGANIZED INTO LUMENS FOR IDENTIFICATION
Embodiments of the disclosure relate to an optical fiber subunit. The optical fiber subunit includes a buffer tube having an interior surface and an exterior surface in which the interior surface defines a channel. The optical fiber subunit also includes a first lumen disposed within the channel. The first lumen includes a first membrane having a thickness of 0.15 mm or less and surrounds a first plurality of optical fibers. A second plurality of optical fibers disposed within the channel and outside the first lumen. Also disclosed are embodiments of an optical fiber cable having one or more lumens disposed within a central bore of a cable jacket and embodiments of a method of manufacturing an optical fiber cable.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes an outer jacket having a first inner surface and a first outer surface. The optical fiber cable also includes an inner jacket. An armor layer is disposed between the outer jacket and the inner jacket. The armor layer is formed from a strip wrapped into a tubular structure around the inner jacket, and the strip is made from a material having a thermal conductivity of at least 10 W/mK. At least one layer of strengthening yarns is disposed between the armor layer and the inner jacket. In the optical fiber cable, a plurality of optical fibers is disposed within the inner jacket. The optical fiber cable has a tensile strength of at least 50 kN.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
25.
GRAPHICAL USER INTERFACE FOR CABLE ASSEMBLY DESIGN TOOL
A non-transitory computer readable medium having stored thereon a plurality of computer-executable instructions is provided. The instructions, when executed by processing circuitry, cause the processing circuitry to cause presentation of a graphical user interface on a display for creation of a user-customized cable. The user-customized cable includes a primary cable and subunit cable(s) therein. Subunit cable(s) include end fiber(s). The graphical user interface includes a cable illustration portion (102) having a cable representation, and the cable representation includes a representation of the user-customized cable. The graphical user interface includes a cable properties portion (104) permitting selection of a connector type, a number of breakout cables, a number of cable groups, or a number of connectors per cable group. The instructions cause processing circuitry to receive the selection and alter the cable representation based on the selection. The cable representation is fit in the cable illustration portion to maximize the cable representation's footprint.
G06F 30/12 - CAO géométrique caractérisée par des moyens d’entrée spécialement adaptés à la CAO, p.ex. interfaces utilisateur graphiques [UIG] spécialement adaptées à la CAO
G06F 113/16 - Câbles, arbres de câblage ou faisceaux de fils électriques
A non-transitory computer readable medium having stored thereon a plurality of computer-executable instructions is provided. The instructions, when executed by processing circuitry, cause the processing circuitry to receive a selection of a connector that is associated with a user-customized cable. The user-customized cable includes a primary cable and subunit cable(s) within the primary cable. The subunit cable(s) include the connector (914) and end fiber(s) (1-12) associated with the connector (914). The instructions cause determination of available polarity assignments based on the selection of the connector (914); sharing of available polarity assignments for the connector; receipt of selected polarity assignment for the connector; storing of information regarding the selected polarity assignment in a memory; and provision of an indication that a polarity assignment has been made.
G06F 30/12 - CAO géométrique caractérisée par des moyens d’entrée spécialement adaptés à la CAO, p.ex. interfaces utilisateur graphiques [UIG] spécialement adaptées à la CAO
G06F 113/16 - Câbles, arbres de câblage ou faisceaux de fils électriques
27.
CABLE ASSEMBLY DESIGN TOOL WITH FIBER UTILIZATION COUNTER
A non-transitory computer readable medium having stored thereon a plurality of computer-executable instructions is provided. The instructions, when executed by processing circuitry, cause the processing circuitry to determine an available fiber count. The user-customized cable includes a primary cable (118A) and subunit cables (110B, 110B') including end fibers. The available fiber count is a theoretical number of end fibers available in the primary cable. Instructions cause processing circuitry to receive user inputs indicating addition or subtraction of a subunit cable (110B) on a first or second end of the user-customized cable. Instructions cause processing circuitry to determine a current number of end fibers in a user-customized cable and determine whether the available fiber count is less than the current number of end fibers. The instructions provide, based on the determination, an overutilization indication or an indication that the user-customized cable underutilizes the end fibers or utilizes each of the end fibers without overutilization.
G06F 30/12 - CAO géométrique caractérisée par des moyens d’entrée spécialement adaptés à la CAO, p.ex. interfaces utilisateur graphiques [UIG] spécialement adaptées à la CAO
G06F 113/16 - Câbles, arbres de câblage ou faisceaux de fils électriques
Embodiments of the disclosure relate to an optical fiber tape. The optical fiber tape includes a plurality of optical elements positioned adjacently between a first outer optical element and a second outer optical element. The plurality of optical elements has an ordered arrangement between the first outer optical element and the second outer optical element. At least one weft is woven through the plurality of optical elements between the first outer optical element and the second outer optical element along a length of the optical fiber tape. The at least one weft is woven in a chain stitch or overlock stitch along the length of the optical fiber tape. The optical fiber tape is configured to transition between a planar configuration and a non-planar configuration while maintaining the ordered arrangement of the plurality of optical elements.
Optical distribution systems for data centers or similar networks are disclosed, where one or both ends of a high fiber-count backbone cable branch out once to serve multiple buildings. The optical distribution systems include the backbone cable, an enclosure that receives an end portion of the backbone cable, a plurality of tether cables connected to the backbone cable within a sealed interior of the enclosure and extending from the enclosure, and a plurality of multiport terminals each receiving one of the tether cables and including connection ports for an auxiliary cable that can extend to one of the buildings. Related methods are also disclosed.
Embodiments of the disclosure relate to an optical fiber distribution cable. The cable includes a central member extending along a longitudinal axis of the cable. A plurality of subunits is stranded around the central member in at least one layer, including an outermost layer of subunits. An overmold is formed around the outermost layer of subunits adjacent to at least one branch point. The overmold is made of a thermoplastic material. Each subunit has a subunit jacket. The subunit jackets of the outermost layer define an outermost surface of the cable. A first subunit branches away from the cable at the at least one branch point. The thermoplastic material of the overmold has a melting temperature at least 10 °C less than a melting temperature of the subunit jackets. Further, a bonding force between the overmold and the subunit jackets is at least 600 lbsf.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
B29C 33/00 - Moules ou noyaux; Leurs détails ou accessoires
B29C 45/00 - Moulage par injection, c. à d. en forçant un volume déterminé de matière à mouler par une buse d'injection dans un moule fermé; Appareils à cet effet
Methods and systems for forming a fiber assembly are provided herein. A method comprises removing an excess portion from an end of an optical fiber to form a severed end. The optical fiber defines an optical variation portion that includes an optical pathway defining a varying output characteristic of optical signals depending on a position therealong. When the severed end is formed, the position of the severed end along the optical variation portion defines the output characteristic of optical signals therefrom. The method further includes positioning the optical fiber with the severed end onto a film disposed on a surface of a substrate and placing a fixture thereover. The method further includes applying heat to the film through an opening of the fixture to create a bond between the optical fiber and the surface of the substrate.
G02B 6/255 - Epissage des guides de lumière, p.ex. par fusion ou par liaison
G02B 6/32 - Moyens de couplage optique ayant des moyens de focalisation par lentilles
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
B23K 26/18 - Travail par rayon laser, p.ex. soudage, découpage ou perçage utilisant des couches absorbantes sur la pièce à travailler, p.ex. afin de marquer ou de protéger
B23K 26/57 - Travail par transmission du faisceau laser à travers ou dans la pièce à travailler le faisceau laser entrant dans une face de la pièce à travailler d’où il est transmis à travers le matériau de la pièce à travailler pour opérer sur une face différente de la pièce à travailler, p.ex. pour effectuer un enlèvement de matière, pour rac
G02B 6/028 - Fibres optiques avec revêtement le noyau ou le revêtement ayant un indice de réfraction progressif
G02B 6/25 - Préparation des extrémités des guides de lumière pour le couplage, p.ex. découpage
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/293 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
Methods of forming an optical fiber assembly involve placing an adhesive in a ferrule assembly, heating the ferrule assembly through thermal induction, inserting an optical fiber into the ferrule bore during or after the heating step, and securing the optical fiber to the ferrule assembly using the adhesive. The thermal induction causes the adhesive to efficiently take or maintain a melted form to allow the optical fiber insertion.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each including a subunit coating of a first material surrounding at least one optical fiber. The optical fiber ribbon also includes a ribbon matrix of a second material disposed around the plurality of subunits. A plurality of bonds are intermittently formed between adjacent subunits of the plurality of subunits. Each bond is formed by an interaction of the second material with the first material for the purpose of creating a first level of adhesion between the first and second materials at an outer surface of the subunit coating. The second material is inhibited from interacting with the first material in regions between the plurality of bonds along a length of the optical fiber ribbon to create a second level of adhesion that is less than the first level of adhesion.
Embodiments of the disclosure relate to a lumen. The lumen includes a plurality of optical fibers and a membrane having an inner surface and an outer surface defining a maximum thickness therebetween. The maximum thickness is 50 microns or less. Each optical fiber of the plurality of optical fibers is partially attached to the inner surface of the membrane. Also disclosed are embodiments of a method of manufacturing a lumen that is reversibly configurable between a planar configuration and a non-planar configuration while maintaining a sequence of a plurality of optical fibers and embodiments of an optical fiber cable including a plurality of such lumens.
Disclosed herein are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having a jacket inner surface and a jacket outer surface in which the jacket inner surface defines a central bore extending along a longitudinal axis of the optical fiber cable. The optical fiber cable also includes a buffer tube having an inner buffer tube surface and an outer buffer tube surface, and the buffer tube is disposed within the central bore of the cable jacket. At least one optical fiber is disposed within the buffer tube. A flame retardant coating having at least one layer is applied to one or both of the jacket outer surface of the cable jacket or the outer buffer tube surface of the buffer tube.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H01B 7/295 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures par des températures extrêmes ou par les flammes en utilisant un matériau résistant aux flammes
Provided are embodiments of an optical fiber ribbon. The optical fiber ribbon includes a plurality of optical fibers arranged adjacently. The plurality of optical fibers are joined intermittently or continuously along their length. Each optical fiber of the plurality of optical fibers has at least one core having a first refractive index, a cladding region having a second refractive index different from the first refractive index, and a third region disposed within the cladding region. The third region has a third refractive index different from the first refractive index and from the second refractive index. The third region of each optical fiber includes a centroid having a true position according to ASME Y14.5-2009 relative to an adjacent optical fiber that is within a diametrical tolerance of 50 µm. Embodiments of a method and a system for preparing such and optical fiber ribbon are also provided.
Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket with an inner surface and an outer surface in which the inner surface defines a central cable bore and in which the outer surface defines an outermost surface of the optical fiber cable. The optical fiber cable includes from 48 to 864 optical fibers disposed within the central cable bore. Further, the outer surface of the cable jacket defines a cable diameter of at least 2 mm and up to 11 mm. The optical fiber cable has a fiber density of at least 7.5 optical fibers/mm2 based on a cross-sectional area of the optical fiber cable as measured from the outer surface of the cable jacket.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
A fiber optic cable manager is provided configured to receive at least one optical fiber optically connecting one or more fiber optic adapters to a fiber optic device. The fiber optic cable manager includes a base, a sidewall extending from the base and defining a cable input opening and a cable output opening, at least one cable optically connecting one or more fiber optic adapters to an opto-electronic device, and a plurality of mandrels extending from the base and interior to the sidewall, the plurality of mandrels and the sidewall are configured to limit bending of the at least one optical to greater than a predetermined bend radius.
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
G02F 1/01 - Dispositifs ou dispositions pour la commande de l'intensité, de la couleur, de la phase, de la polarisation ou de la direction de la lumière arrivant d'une source lumineuse indépendante, p.ex. commutation, ouverture de porte ou modulation; Optique non linéaire pour la commande de l'intensité, de la phase, de la polarisation ou de la couleur
H01B 7/36 - Conducteurs ou câbles isolés caractérisés par la forme avec repères distinctifs ou indication de longueur
39.
GUIDANCE FOR INSTALLATION OF FIBER OPTIC CABLES IN CABLE DISTRIBUTION SYSTEMS HAVING A HIGH FIBER COUNT
A method for assisting a user in installing a fiber optic cable connection is provided. The method includes receiving a cable identifier associated with a grouping of fibers, and the grouping of the fibers terminates in a fiber optic connector (1160). The method includes identifying, based on the cable identifier and a search matrix (1150), a correct installation port (436A) on a panel for inserting the fiber optic connector (1160). The panel includes at least seventy installation ports. The method includes guiding a user to the identified correct installation port (436A) for installation of the fiber optic connector therein. The search matrix (1150) includes at least two bounding areas (1151), and each bounding area (1151) defines a target area where a port identifier is likely to be located. The search matrix (1150) is created by using a location of an anchor label identifier (342D) or relative locations of a port identifiers and by using equipment information associated with the panel.
A method and system for measuring signal loss in a fiber optic cable. The tail ends of reference and test fiber optic cables are illuminated with a diffuse light. The head end of each of the reference and test fiber optic cables are positioned in a measurement area. A core imager captures an image of the core of each head-end while it is in the measurement area. Reference and test radiant fluxes emitted from the reference and test head-ends are determined from the respective core images. The relative signal loss of the test fiber optic cable is then determined by comparing the test radiant flux to the reference radiant flux.
G01M 11/00 - Test des appareils optiques; Test des structures ou des ouvrages par des méthodes optiques, non prévu ailleurs
G01B 11/27 - Dispositions pour la mesure caractérisées par l'utilisation de techniques optiques pour tester l'alignement des axes pour tester l'alignement des axes
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
41.
TRANSFORMABLE BRACKETS FOR USE IN CABLE DISTRIBUTION SYSTEMS HAVING A HIGH FIBER COUNT
A transformable bracket for easy identification of an installation port is provided. The transformable bracket includes a clamp and elongated body. The clamp is configured to be selectively attached to either (i) a cable or a connector for the cable or (ii) a dust cap for the installation port. The elongated body has a routing feature for directing the cable when the cable is attached to the port. The elongated body also has an identifier positioned on the elongated body so as to be visible when the cable is attached to the installation port, with the identifier identifying the installation port associated with the transformable bracket. Attachment of a connector in the clamp may result in a cable attached to the connector extending at least partially along an axis extending through the routing feature. The routing feature may prevent the cable from extending along the axis past the routing feature.
Fiber optic connectors having a sealing gasket disposed on a portion of the ferrule assembly and methods of making the same for inhibiting moisture, dirt, debris or dust from reaching a ferrule end face when the connector is mated are disclosed. The ferrule assembly of the fiber optic connector may be configured for physical contact or a lens-based optical transmission. When assembled, the fiber optic connectors have the sealing gasket disposed within a passageway of the connector housing for providing an internal sealing cavity within the passageway of the fiber optic connectors when mated, thereby providing environmental protection within the passageway of the connector housing that houses the optical interface. The connector concepts also allow quick and easy manufacture and assembly of the connector in a reliable, modular and configurable connector package.
Disclosed herein are embodiments of a cable assembly including an optical fiber cable connectorized at one or both ends. The optical fiber cable of the cable assembly includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central bore extending along a longitudinal axis of the optical fiber cable, and the outer surface defines an outermost surface of the optical fiber cable. At least one tensile strand is disposed between the inner surface and the outer surface of the cable jacket, and at least one optical element is disposed within the central bore of the cable jacket. Also disclosed herein are a method of preparing a cable assembly by attaching a connector to the optical fiber cable as and a method of preparing the optical fiber cable.
Disclosed are embodiments of an optical fiber ribbon. In the optical fiber ribbon, subunits each include a subunit coating surrounding at least one optical fiber. Bonds are intermittently formed between adjacent subunits. Each bond has a unique longitudinal position along a length of the optical fiber ribbon such that no other bond is located at the unique longitudinal position. Each optical fiber includes a core region, a cladding region surrounding the core region, a primary coating surrounding the cladding region, and a secondary coating surrounding the primary coating. The cladding region defines a glass diameter in a range from 90 microns to 110 microns, and the secondary coating defines an outer diameter of 140 microns to 170 microns. The cladding region has a depressed index region comprising a trench volume of -20 %Δ-micron2.
An electro-optical assembly is provided. The electro-optical assembly includes a module having a module substrate, with the module substrate having a module waveguide. The electro-optical assembly also includes a circuit board having a circuit board substrate, with the circuit board substrate having a circuit board waveguide. The electro-optical assembly also includes at least one integrated circuit proximate to the module. The module is assembled to the circuit board so that the circuit board waveguide is aligned with the module waveguide for optical coupling.
A system for maintaining relative position of separate fibers is provided. The system comprises a fiber holder and fibers extending parallel along a Z-axis. The fibers include a first and second fiber, both having a coating and a core section. The fiber holder has a first and second alignment slots. The first alignment slot defines a first recess in a first surface of the fiber holder. The first recess is configured to receive the first fiber therein to provide frictional resistance to the first fiber. The second alignment slot defines a second recess in the first surface. The second recess is configured to receive the second fiber therein to provide frictional resistance to the second fiber. The first alignment slot is positioned in a fixed spaced apart manner from the second alignment slot to maintain at least a relative position of the first fiber and the second fiber.
Methods and systems for joining photonic components. A method includes suspending nano-particles (131) in a medium, wherein the nano-particles (131) include metal nano-particles. The method further includes applying a layer of the nano-particle medium (131a) to a first substrate (110), and exposing the layer of nano-particle medium (131a) to a thermal process to remove at least a portion of the medium and expose the nano-particles (130). A second substrate (120) is placed on the nano-particles (130) in alignment with the first substrate (110), and a heat is applied to the nano-particles (130) to cause connection of contact points between adjacent nano-particles 8130) to cause a secure alignment of the first and second substrates (110, 120). The heat applied to the layer of nano-particles is less than 300°C.
G02B 6/12 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré
Embodiments of the disclosure relate to an applicator for an adhesive primer. The applicator includes a tank configured to hold the adhesive primer. The applicator also includes a peristaltic pump, having an inlet and an outlet, and a spray nozzle. A first conduit extends from an interior of the tank to the inlet of the peristaltic pump, and a second conduit extends from an outlet of the peristaltic pump to the spray nozzle. Embodiments of the present disclosure also relate to a method of applying adhesive primer to a road surface using the applicator. In the method, the adhesive primer is pumped from the tank containing the adhesive primer through the peristaltic pump to the spray nozzle. Further, the adhesive primer is sprayed from the spray nozzle onto the road surface while the applicator moves across the road surface.
B05B 9/04 - Appareillages de pulvérisation pour débiter des liquides ou d'autres matériaux fluides, n'impliquant pas de mélange avec des gaz ou des vapeurs caractérisés par les moyens d'alimentation en liquide ou en autre matériau fluide comportant une pompe
Disclosed herein are grinding machines for forming a trench. Embodiments relate to a grinding machine with a grind head and a vehicle mount. The grind head includes a housing body and a grinding drum. The vehicle mount is configured to attach the housing body to a vehicle. One embodiment of the disclosure relates to a trunnion attachment configured to attach the housing body to a vehicle such that the housing body is configured to roll about a roll axis oriented in a travel direction relative to the vehicle mount. The roll axis is proximate an initial contact point of the blade set. In another embodiment, a caster attachment is configured to attach the housing body to a vehicle such that the housing body is configured to yaw about a yaw axis oriented in an upward direction relative to the vehicle mount.
E01C 23/09 - Dispositifs ou aménagements pour travailler la surface terminée; Dispositifs pour réparer la surface des revêtements endommagés pour rogner les bords du revêtement
50.
ASSEMBLIES, OPTICAL CONNECTORS AND METHODS OF BONDING OPTICAL FIBERS TO SUBSTRATES USING A LASER BEAM AND ELECTROPLATING
Assemblies and optical connectors including one or more optical fibers laser-bonded to a substrate, as well as methods for fabricating the same, are disclosed. In one embodiment, an assembly includes a substrate having a surface, an optical element bonded to the surface of the substrate, a bond area between the optical fiber and the surface of the substrate, wherein the bond area includes laser-melted material of the substrate that bonds the optical fiber to the substrate, and a metal buttress structure adjacent to the bond area.
A fiber optic cable includes a core comprising a plurality of cable subunits configured such that an outer group of cable subunits surrounds a central cable subunit. each cable subunit includes one or more optical fibers, a buffer tube surrounding the one or more optical fibers, a strength layer surrounding the buffer tube, and a subunit jacket surrounding the strength layer. A thin film outer sheath surrounds the core, wherein the thin film outer sheath loads the outer group of cable subunits normally to the central cable subunit such that contact between the outer group of cable subunits and the central cable subunit provides coupling therebetween, limiting axial migration of the outer group of cable subunits relative to the central cable subunit.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H01B 7/28 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures par l'humidité, la corrosion, les attaques chimiques ou les conditions atmosphériques
Provided are embodiments of an optical fiber cable. The optical fiber cable includes a cable jacket having an inner surface and an outer surface. The inner surface defines a central cable bore, and the outer surface defines an outermost surface of the optical fiber cable. The optical fiber cable also includes a cable core disposed in the central cable bore. The cable core includes a plurality of multicore optical fibers and a cross-sectional area. The plurality of multicore optical fibers fill at least 50% of the cross-sectional area of the cable core. Each multicore optical fiber of the plurality of multicore optical fibers has an inner glass region having a plurality of core regions surrounded by a common outer cladding. The cable core has a core region density that is at least 40 core regions/mm2.
A method, system, and computer program product for determining a core-to- ferrule offset of a ferrule for a fiber optic connector, A reference ferrule is physically aligned with a core imager by positioning the reference ferrule so that edges of the reference ferrule in a plurality of profile images are aligned with fiducial markers in the images. The reference ferrule is incrementally rotated about its longitudinal center access, a core image captured at each rotational angle, and a reference core-to-ferrule offset determined based on the core images. A test ferrule is physically aligned with the core imager by positioning the test ferrule so that edges of the test ferule are aligned with the edges of the reference ferrule in a plurality of profile images. The core-to-ferrule offset of the test ferrule is then determined based on an offset between the test and reference cores in a composite core image.
A method, system, and computer program product for determining a core-to-ferrule offset of a ferrule for a fiber optic connector. A reference ferrule is physically aligned with a core imager by positioning the reference ferrule so that edges of the reference ferrule in a plurality of profile images are aligned with fiducial markers in the images. The reference ferrule is incrementally rotated about its longitudinal center access, a core image captured at each rotational angle, and a reference core-to-ferrule offset determined based on the core images. A test ferrule is physically aligned with the core imager by positioning the test ferrule so that edges of the test ferule are aligned with the edges of the reference ferrule in a plurality of profile images. The core-to-ferrule offset of the test ferrule is then determined based on an offset between the test and reference cores in a composite core image.
The present disclosure relates to a distribution cable assembly that has various features to enable flexible configurations to accommodate various data center configurations.
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G06F 30/18 - Conception de réseaux, p.ex. conception basée sur les aspects topologiques ou d’interconnexion des systèmes d’approvisionnement en eau, électricité ou gaz, de tuyauterie, de chauffage, ventilation et climatisation [CVC], ou de systèmes de câblage
57.
FIBER OPTIC SYSTEM WITH MULTIMODE OPTICAL FIBER CABLES AND FIBER CONNECTIONS WITH MODE-MATCHING SINGLE-MODE FIBER DEVICES
Disclosed herein is a fiber optic system including at least one fiber optic cable assembly having a multimode optical fiber for communication of an optical data signal at an operating wavelength and a devices having a single-mode fiber stub with a mode field diameter within 20% of the mode field diameter of the fundamental mode of the multimode optical fiber at the operating wavelength. The single-mode fiber stub is secured to a ferrule, and a center of a core of the single-mode fiber stub is within 0.5 µm of a center of the ferrule. An end of the single-mode fiber stub that extends to or beyond the back end of the ferrule and forms an optical connection with the multimode optical fiber where the center of the single-mode fiber stub is within 2 µm of a center of the multimode optical fiber.
Systems and methods are provided for connection of an optical fiber to a substrate. The substrate may comprise waveguide(s), guide pin(s), and a substrate body. The guide pin(s) define a first and second end and comprise a capture feature proximate the second end. The substrate body comprises a receiving feature configured to receive and connect the first end of guide pin(s), and the second end of guide pin(s) extends outwardly from the substrate body. The system also comprises a connector configured to receive the optical fiber and including a receiver portion that has a locking feature and defines a recess configured to receive the guide pin(s). The capture feature is configured to engage with the locking feature. When the capture feature is engaged with the locking feature, the optical fiber is aligned with the optical waveguide(s) and restrained from movement relative to the substrate.
Systems and methods are provided for aligning a substrate with an optical fiber. A system comprises an optical fiber and a substrate with one or more optical waveguides, guide pin(s), and a substrate body comprising a receiving feature configured to receive and connect with the guide pin(s). The system also comprises an adapter having a pair of opposing walls defining a spacing therebetween. The adapter is configured to receive and connect to the substrate body in between the pair of opposing walls. The system also comprises a plug defining a hole(s) that is configured to receive the guide pin(s). The plug is configured to receive and connect the optical fiber. Connection of the adapter and the substrate body and connection of the adapter and the plug restrain movement of the optical fiber relative to the substrate.
Waveguide substrate connection systems and methods are provided herein. An example waveguide assembly comprises a first substrate having a first waveguide, a second substrate having a second waveguide, an adhesive, and one or more spacers. A height for the one or more spacers is less than 10 μm. The adhesive and the one or more spacers provide a composite material configured to assist in securing the first substrate and the second substrate together to align the first waveguide and the second waveguide. When the first substrate and the second substrate are attached together via the adhesive, the one or more spacers are configured to maintain a desired gap spacing therebetween so as to optimize coupling efficiency between the first waveguide and the second waveguide. The desired gap spacing corresponds to the height for the one or more spacers.
G02B 6/42 - Couplage de guides de lumière avec des éléments opto-électroniques
G02B 6/12 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques du genre à circuit intégré
61.
FIBER OPTIC CLOSURE ASSEMBLIES, FIBER DROP ACCESS POINTS, AND METHODS FOR INSTALLING FIBER DROP ACCESS POINTS
A fiber enclosure includes an upper body portion and a lower body portion coupled to the upper body portion. The upper body portion defines a primary volume. The lower body portion extends from the upper body portion and defines an inlet volume in communication with the primary volume, the lower body portion comprising a port wall comprising a plurality of ports for receiving cables. The port wall is recessed from an outer edge of the upper body portion, such that the plurality of ports is positioned in a separate plane from the upper body portion and recessed from the outer edge of the upper body portion a distance larger than or equal to a bend radius of a cable connected thereto.
A fiber enclosure includes a closure body, a lid removably coupled to the closure body, and a plurality of clamps coupling the lid to the closure body. The lid includes a lid body, a lid lip extending from the lid body between each of the plurality of clamps, and a plurality of lid ribs connecting the lid lip and the lid body thereby providing a lid reinforcement between each adjacent clamp. The closure body includes an upper body portion, a closure body lip extending from the upper body portion between each of the plurality of clamps, and a plurality of body ribs connecting the closure body lip and the upper body portion, thereby providing a closure body reinforcement between each of the adjacent clamps.
Embodiments of the disclosure relate to a polymer composition that includes at least one polymer and an aversive additive dispersed in the at least one polymer. The aversive additive is made of a zeolite material and an aversive material infused within pores of the zeolite material. In embodiments, the aversive additive is incorporated into an optical fiber cable. The optical fiber cable includes at least one optical fiber and a polymeric jacket that surrounds the at least one optical fiber. The polymeric jacket is made of a polymer matrix and the aversive additive is dispersed in the polymer matrix. Embodiments of a method of infusing an aversive material into a zeolite material to form the aversive additive are also disclosed herein.
Disclosed herein is a system and method of controlling a strander by wireless visual monitoring. In certain embodiments, a stranding system includes at least one vision device mounted to a rotating structure of a strander. The at least one vision device is configured to capture a view of at least a portion of a subunit reel of at least one of a set of payoff units of the rotating structure to generate vision data. The stranding system further includes at least one wireless communication module mounted to the rotating structure to receive and wirelessly transmit the vision data over a high-bandwidth data link. The stranding system is configured to proactively identify payout hazards of the subunit package (e.g., cable crossover) to, for example, prevent damage to the strander.
D07B 3/06 - Machines ou appareillages d'application générale pour la production de cordes ou câbles retordus à partir de brins constitutifs faits de matériaux identiques ou différents sur lesquels les dévidoirs d'alimentation tournent autour de l'axe de la corde ou du câble et sont espacés radialement à partir de l'axe de la machine
D07B 3/04 - Machines ou appareillages d'application générale pour la production de cordes ou câbles retordus à partir de brins constitutifs faits de matériaux identiques ou différents sur lesquels les dévidoirs d'alimentation tournent autour de l'axe de la corde ou du câble et sont disposés en tandem le long de l'axe de la machine
65.
FIBER OPTIC TERMINALS WITH WAVELENGTH DIVISION MULTIPLEXING AND PHYSICAL PATH REDUNDANCY
Fiber optic terminals (200) with wavelength division multiplexing (WDM) and connection ports supporting physical path redundancy are disclosed. In one embodiment, a terminal (200) comprises a shell (210) housing at least one primary wavelength division multiplexer (PWDM) device, at least one redundant wavelength division multiplexer (RWDM) device, at least one input connection port (236) having a first input optical fiber in optical communication with the PWDM device and a second input optical fiber in optical communication with the RWDM device, at least one multifiber primary output connection port (260P), and at least one multifiber redundant output connection port (260R). The input connection port (236) or output connection ports (260P,260R) can support optical connection with one or more optical fibers of an external multi-fiber connector as desired.
Embodiments of a polymer composition are provided. The polymer composition incudes at least one polymer and an aversive additive dispersed in the at least one polymer. The aversive additive includes a porous inorganic material having pores and an aversive material contained within the pores of the porous inorganic material. In embodiments, the polymer composition may be incorporated as jacketing into an optical fiber cable. Also disclosed is a method including the step of infusing an aversive material into a porous inorganic material to form an aversive additive. The porous inorganic material includes particles having an average porosity of from 25% to 75% and a median diameter of 100 µm or less.
A01N 25/08 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux, caractérisés par leurs formes, ingrédients inactifs ou modes d'application; Substances réduisant les effets nocifs des ingrédients actifs vis-à-vis d'organismes autres que les animaux nuisibles contenant des solides comme supports ou diluants
A01N 65/00 - Biocides, produits repoussant ou attirant les animaux nuisibles, ou régulateurs de croissance des végétaux contenant du matériel provenant d'algues, de lichens, de bryophytes, de champignons multicellulaires ou de plantes, ou leurs extraits
H01B 11/22 - Câbles comprenant à la fois au moins un conducteur de l'électricité et des fibres optiques
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of optical fibers. Each optical fiber of the plurality of optical fibers is arranged adjacently to at least one other optical fiber of the plurality of optical fibers. The plurality of optical fibers have a planar configuration with a first side and a second side. The optical fiber ribbon also includes a first set of pointers disposed on the first side, the second side, or both the first side and the second side. The first set of pointers includes a first starter pointer and at least three first identifier pointers. The first starter pointer is configured to identify a start of an identification sequence for the optical fiber ribbon defined by the at least three first identifier pointers.
An optical communication cable and related method is provided. The cable includes a cable body and a plurality of optical transmission elements surrounded by the cable body. The cable includes a reinforcement layer surrounding the plurality of optical transmission elements and located between the cable body and the plurality of optical transmission elements. The reinforcement layer includes a first portion and a second portion coupled together and extending longitudinally away from each other.
G02B 6/255 - Epissage des guides de lumière, p.ex. par fusion ou par liaison
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/43 - Dispositions comprenant une série d'éléments opto-électroniques et d'interconnexions optiques associées
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
H01B 7/17 - Protection contre les dommages provoqués par des facteurs extérieurs, p.ex. gaines ou armatures
69.
ANNEALED SUBUNITS IN BUNDLED DROP ASSEMBLY AND PROCESS OF ANNEALING SUBUNITS IN BUNDLED DROP ASSEMBLY
Embodiments of the disclosure relate to a bundled drop assembly. The bundled drop assembly includes a central member and a first layer of subunits wound around the central member in a bundled configuration. The first layer of subunits has at least one subunit containing at least one first optical fiber, and the first layer of subunits has a first maximum cross-sectional dimension in the bundled configuration. In an unrestrained configuration, the first layer of subunits has a second maximum cross-sectional dimension that is less than twice the first maximum cross-sectional dimension.
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
70.
FIBER OPTIC CABLE ASSEMBLY WITH PULLING GRIP ASSEMBLY AND RELATED METHODS
A fiber optic cable assembly comprises: a cable jacket; distinct groups of optical fibers carried within the cable jacket and extending beyond a first end of the cable jacket; a furcation body positioned on the first end of the cable jacket such that the distinct groups of optical fibers have respective fiber end sections extending beyond the furcation body; and a pulling grip assembly protecting the fiber end sections. The pulling grip assembly includes a pulling band releasably secured to the cable jacket by a clamp, and is configured to withstand significant tensile loads despite being easily removable.
Disclosed herein are walk behind grinding tools with horizontally aligned guides and grinding drum. One embodiment relates to a grinding tool with a pair of guides on opposing sides of a blade set of a grinding drum, where the pair of guides is configured to limit a grinding depth of the grinding drum. At least a portion of a guide curvature is generally concentric with a mill curvature, and a guide radius is less than a mill radius. Another embodiment relates to a grinding system including a grinding tool with a vacuum shroud hingedly attached to a front of a main body of a grinding housing, and a vacuum including a vacuum tube in fluid communication with the vacuum shroud. Another embodiment relates to a method of forming a grinding tool.
E01C 23/02 - Dispositifs pour former, traiter ou remplir les rainures ou sillons analogues dans un revêtement non encore durci, p.ex. pour les joints ou les marques; Caissons mobiles pour ceux-ci; Dispositifs pour introduire des pièces rapportées ou des supports mobiles de pièces rapportées dans un revêtement non encore durci
E02F 5/08 - Dragues ou engins de terrassement à usages particuliers pour creuser des tranchées ou fossés avec des roues excavatrices tournant autour d'un axe
G02B 6/46 - Procédés ou appareils adaptés à l'installation de fibres optiques ou de câbles optiques
G02B 6/50 - Installation souterraine ou sous l'eau; Installation à travers des tubes, des conduits ou des canalisations
H02G 9/02 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau tendus directement dans ou sur le sol, lit de rivière ou fond de mer; Leur recouvrement, p.ex. tuiles
72.
MULTI-FIBER SPLICE PROTECTOR WITH COMPACT SPLICE-ON FURCATION HOUSING
The present disclosure relates to protecting splices of multiple optical fibers with a low-profile multi-fiber splice protector and a compact splice on furcation housing. The present disclosure also relates to optimal fiber wiring patterns within an optical fiber cable assembly.
A multiport assembly including one or more optical adapters configured to receive an optical connector, a shell having a front face defining one or more connection port insert openings extending from an outer surface of the front face into a cavity of the shell, a connection port insert positioned at least partially within the one of the connection port insert openings of the shell, the connection port insert defining a body including an optical connector opening extending from a front end of the body to a rear end of the body, and a sealing member disposed between the connection port insert and the shell.
Disclosed herein is a system and method of measuring for manufacture and deployment of distribution cable assemblies. The measurement includes a distribution cable ruler having at least one similar feature as a distribution cable of a distribution cable assembly. The at least one similar feature comprising at least one of an outer diameter, a bend radius, or a rigidity. The distribution cable ruler includes measurement indicia to facilitate measurement of a distribution length of the distribution cable of the distribution cable assembly. The method includes positioning a distribution cable ruler in a path intended for a distribution cable assembly. The method further includes measuring a distribution cable length of the distribution cable ruler using measurement indicia of the distribution cable ruler.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
G01B 3/02 - Règles avec des échelles ou des marques pour la lecture directe
Devices such as multiports (200) comprising connection ports (236) with associated rotating actuators (310A) that are pivotly mounted to the device for engaging securing members (310M) along with methods for making the same. In one embodiment, the device comprises a shell (210), at least one connection port (236), and at least one rotating actuator (310A) that engages with a complimentary securing member (310M). The at least one connection port (236) is disposed on the multiport (200) with the at least one connection port (236) comprising an optical connector opening (238) extending from an outer surface (234) of the multiport to a cavity (216) of the multiport and defining a connection port passageway (233). The at least one securing member (310M) is associated with the connection port passageway (233), and turning the rotating actuators (310A) allows the release of an optical connector disposed in the connection port (236).
Embodiments of a tensile strength limiting system are provided. The tensile strength limiting system is configured to cause breakage of an optical fiber cable at a predetermined tensile loading below a tensile strength of the optical fiber cable. The tensile strength limiting system includes a force limiter configured for attachment to the optical fiber cable strung on an aerial pole and a restriction clip through which the optical fiber cable is configured to be looped. At the predetermined tensile loading, the force limiter is configured to allow the optical fiber cable to pull through the restriction clip; and the restriction clip is configured to force the optical fiber cable to bend below a minimum bend radius of a strength member within the optical fiber cable such that the strength member breaks.
Several methods of deploying an optical fiber carrying structure along a road are provided. In one method a recess and channel are created within a road. The optical fiber carrying structure is deployed in the channel and a cover encloses the optical flber carrying structure within the channel. In another method the optical fiber carrying structure is anchored to the road and/or curb. In another method the optical fiber carrying structure is coupled to a brace that is affixed to the road. The brace facilitates quickly installing lateral transitions from the primary channel in the road to installation environments off the road.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of optical fibers arranged adjacently to each other. Each optical fiber has a circumferential outer surface. The optical fiber ribbon also includes a lengthwise continuous coating disposed on at least a portion of the circumferential outer surface of each optical fiber. The coating includes a colorant for identifying the optical fiber ribbon among a plurality of optical fiber ribbons. The coating has a first thickness. Further, the optical fiber ribbon includes plurality of bonds intermittently formed between adjacent optical fibers of the plurality of optical fibers. Each of the bonds has a second thickness that is greater than the first thickness. The plurality of bonds provide the only connection between the adjacent optical fibers of the plurality of optical fibers.
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
79.
HIGH DENSITY,LOW DIAMETER CABLE WITH ROLLABLE FIBER OPTIC RIBBON
A high density, low diameter optical fiber ribbon cable is provided. The cable includes a polymeric outer cable jacket and a plurality of flexible optical fiber ribbons. The cable includes a relatively high number of optical fibers despite a relatively small outer diameter. The flexible optical fiber ribbons are located within the cable jacket without buffer tubes, central strength elements and/or gel materials.
Embodiments of the disclosure relate to an optical fiber cable. The optical fiber cable includes a cable jacket having an interior surface and an exterior surface. The interior surface defines a central bore extending along a longitudinal axis of the optical fiber cable, and the exterior surface defines an outermost surface of the optical fiber cable. At least one subunit is disposed within the central bore. Each of the at least one subunit includes at least one optical fiber disposed within a buffer tube. A plurality of ultrahigh molecular weight polyethylene (UHMWPE) tensile yarns are positioned around the at least one subunit and extend along the longitudinal axis. A layer of a bedding compound is disposed between the plurality of UHMWPE tensile yarns and the cable jacket.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
D07B 1/14 - Cordes ou câbles avec éléments auxiliaires incorporés, p.ex. pour marquage, s'étendant sur toute la longueur de la corde ou du câble
B32B 27/02 - Produits stratifiés composés essentiellement de résine synthétique sous forme de fibres ou de filaments
D02G 1/02 - Production de fibres, filaments, filés ou fils, crêpés ou ondulés ou leur donnant de telles caractéristiques latentes par retordage, fixage de la torsion et détorsion, c. à d. en conférant une fausse torsion
D02G 3/06 - Fils formés de matières en rubans autres que le papier
81.
FIBER OPTIC TERMINALS HAVING OPTICAL SPLITTER AND WAVELENGTH DIVISION MULTIPLEXING DEVICES
Field-configurable optical devices and methods are disclosed. In one example, a field-configurable optical device includes a housing defining an enclosure, an input port located at the housing, a pass-through port located at the housing, a plurality of output ports located at the housing, a splitter (126) disposed within the enclosure, a plurality of couplers (820) within the enclosure, each coupler (820) including an input, a first output, and a second output. Each coupler (820) has a power splitting ratio between the first output (821A) and the second output (821B) that is different from the other couplers. An input port fiber optic jumper assembly within the enclosure. A pass-through port fiber optic jumper assembly is within the enclosure. Moving the input port fiber optic jumper assembly and the pass-through port fiber optic jumper assembly from a first coupler (820) to a second coupler (820) of the plurality of couplers (820) changes the power splitting ratio of the field-configurable optical device.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/293 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux avec des moyens de sélection de la longueur d'onde
82.
FIBER OPTIC CONNECTORS HAVING AN INTERNAL RETENTION BODY
Retention bodies and fiber optic connectors and fiber optic cable assemblies including a retention body are disclosed. One aspect of the disclosure is directed to a retention body for a fiber optic connector that includes a front end and a rear end, at least one opening between the front end and the rear end, a front end wall at the front end, and a fiber guide extending from the front end wall. The fiber guide defines a fiber opening in the front end wall for receiving an optical fiber of a fiber optic cable. The retention body further includes a connector engagement surface at the second end that contacts an end of a connector housing when the retention body is inserted into the connector housing.
Optical devices including an optical splitter and a duplex optical connector are disclosed. In one embodiment, an optical device includes an optical splitter having an input, a network output, and a pass-through output, wherein the optical splitter is configured to split an input signal received at the input into a network optical signal at the network output and a pass-through output signal at the pass-through output. The optical device further includes a duplex connector having an input connection point and a pass-through connection point, an input waveguide optically coupling the input connection point to the input of the optical splitter, and a pass-through waveguide optically coupling the pass-through connection point to the pass-through output of the optical splitter.
G02B 6/28 - Moyens de couplage optique ayant des bus de données, c. à d. plusieurs guides d'ondes interconnectés et assurant un système bidirectionnel par nature en mélangeant et divisant les signaux
G02B 6/38 - Moyens de couplage mécaniques ayant des moyens d'assemblage fibre à fibre
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
84.
FIBER OPTIC CONNECTORS HAVING A WEATHERPROOFING COLLAR
Female fiber optic connectors having a weatherproofing collar disposed rearward of a connection port opening that receives a fiber optic plug along with cable assemblies comprising the female fiber optic connector and with methods of making the same. The female fiber optic connectors comprise an actuator such as a rocker latch arm or the like disposed under the weatherproofing colloar used for releaseing or securing an external fiber optic plug that may be received in the connection port. The weatherproofing collar protects the actuator such as the rocker arm latch and surrounding area from dirt, debris, moisture and the like from ingress into the connector. One or more end caps may be used wiht the weatherproofing collar. The weatherproofing collar allows for a ruggedized fiber optic connector having a quick connect and release mechanism for the external fiber optic plug connector mated to the female fiber optic connector.
The present disclosure relates to an optical fiber ribbon in which the optical fibers of the optical fiber ribbon are intermittently bonded together at bonding regions along the length of the optical fiber ribbon. The bonding regions of the optical fiber ribbon each include a joining ribbon matrix that have different colors along the length of the optical fiber ribbon.
Female fiber optic connectors having a connection port opening for receiving a fiber optic plug and cable assemblies comprising the female fiber optic connector along with methods of making the same. The female fiber optic connectors comprise an actuator such as a rocker latch arm used for releasing or securing an external fiber optic plug that may be received in the connection port. A main barrel of the female fiber optic connector comprises a connection port suitable for receiving an external fiber optic plug connector. The female fiber optic connectors disclosed advantageously allow for an quick and easy connection with an external fiber optic plug connector for ruggedized or other desired applications. Methods for terminating the optical fibers of a cable to the female fiber optic connector for forming cable assemblies are also disclosed.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each having a subunit coating surrounding at least one optical fiber. The subunit coating is made of a first material. The optical fiber ribbon also includes a plurality of bonds intermittently formed between adjacent subunits of the plurality of subunits. The plurality of bonds are made of a second material. Each bond of the plurality of bonds has a unique longitudinal position along a length of the optical fiber ribbon such that no other bond of the plurality of bonds is located at the unique longitudinal position. Further, each bond of the plurality of bonds includes a diffusion zone comprising a mixture of the first material and the second material.
A fiber optic assembly is provided including a base configured to be mounted to a surface, a sidewall extending from the base, a cover configured to engage the sidewall to enclose a portion of the fiber optic assembly, a midplane separating a first portion of the fiber optic assembly from a second portion of the fiber optic assembly, and a hinge disposed between the midplane and the sidewall, which enables the midplane to transition between an open position and a closed position. The midplane includes a plurality of adapters disposed through the midplane from a first side to a second side and a plurality of splice holders disposed on the second side configured to retain at least one fiber optic splice connection between an optical fiber of an input cable and an adapter of the plurality of adapters.
A fiber optic cable assembly comprises: a cable jacket; distinct groups of optical fibers carried within the cable jacket and extending beyond a first end of the cable jacket; a furcation body positioned on the first end of the cable jacket such that the distinct groups of optical fibers extend beyond the furcation body; and a pulling grip assembly having a proximal end selectively secured to the furcation body, a distal end opposite the proximal end, and an interior between the proximal end and the distal end that contains fiber end sections. The interior of the pulling grip assembly is sealed off from an exterior of the cable assembly to provide sealed protection for the fiber end sections over an ambient temperate range of at least between -20 to 50 °C while applying a tensile load of at least 300 lbs to the distal end of the pulling grip assembly.
An optical fiber cable that includes subunits is provided. Optical fiber cables are used to transmit data over distance. The subunits are twisted and stranded within the cable to reduce degradation of stranding during use of the cable. The subunits of one or more optical fiber cables are arranged in complimentary configurations that counteract their varying asymmetrical forces to provide an improved handling performance for the optical fiber cable.
An optical fiber cable includes a central element, extending along a longitudinal axis of the optical fiber cable, and a plurality of routable subunits, each routable subunit having a rigidly stranded ribbon stack and a tight buffer layer surrounding the ribbon stack, wherein the subunits are SZ-stranded around the central element to form a cable core. A binder film continuously and contiguously surrounds the plurality of routable subunits along the longitudinal axis and a cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, wherein the cable sheath has an inside surface and an outside surface, the inside surface defining an elliptical shape and the outside surface defining a generally circular shape
A cable includes a first copper conductor and a second copper conductor, and an insulation layer. The insulation layer is formed from a first polymer material, and is a single layer surrounding the first copper conductor and the second copper conductor. A discontinuity formed from a second polymer material is located within the insulation layer, between the first copper conductor and the second copper conductor. The discontinuity provides a weakness within the insulation layer. A jacket surrounds the insulation layer and is made of a third polymer material. A fiber optic ribbon may be located in the cable.
Embodiments of the disclosure relate to a bundled drop assembly. The bundled drop assembly includes a central member. The bundled drop assembly also includes an inner layer of subunits laid in a winding direction around the central member. The inner layer of subunits includes at least one subunit containing one or more optical fibers. Further, the bundled drop assembly includes at least one further layer of subunits laid around the inner layer of subunits in a same winding direction as the inner layer of subunits. The at least one further layer of subunits includes at least one subunit containing one or more optical fibers. The at least one further layer of subunits includes an outer layer of subunits that is the outermost layer of the bundled drop assembly.
G02B 6/44 - Structures mécaniques pour assurer la résistance à la traction et la protection externe des fibres, p.ex. câbles de transmission optique
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
E21B 17/20 - Tubes de forage flexibles ou articulés
Multi-fiber fiber optic connectors and cable assemblies comprising a fiber optic connector. The fiber optic connector comprises a ferrule, a connector housing comprising a longitudinal passageway therethough, and a nose-piece. The nose-piece has a backstop that captures the multi-fiber ferrule and allows limited movement of the ferrule in the unmated state. In one embodiment, the connector housing comprises a keying portion and a locking portion. The fiber optic connectors disclosed advantageously allow for an quick and easy assembly of the multi-fiber connector for rugged or non-rugged applications. Methods for terminating the optical fibers of a cable to the fiber optic connector for forming a cable assembly are also disclosed.
Male plug fiber optic connectors having configured for mating with a dissimilar connector are disclosed along with cable assemblies using the same. The fiber optic connector comprises a ferrule, a connector housing, and a nose-piece having a pocket disposed at a front portion. The pocket of the nose-piece is configured for allowing optical mating with a dissimilar connector. In one embodiment, the pocket on the nosepiece of the connector is disposed on a forward portion of the nosepiece. The fiber optic connectors disclosed advantageously allow for optical mating with dissimilar optical connectors with a quick and easy assembly for rugged applications or other optical communication networks.
Embodiments of the disclosure relate to an optical fiber ribbon. The optical fiber ribbon includes a plurality of subunits each comprising a subunit coating surrounding at least two optical fibers arranged adjacently to each other. The subunit coating is made of a first material. A plurality of bonds are intermittently formed between adjacent subunits of the plurality of subunits. The plurality of bonds are made of a second material. The optical fiber ribbon includes a diffusion zone at an interface between each of the plurality of bonds and the subunit coating of each adjacent subunit. Each diffusion zone has a gradient of the second material in the first material. Further, the intermittent bonds may include one or more saddle surfaces formed by intersecting convex and concave curvatures. A method of forming such optical fiber ribbons is also disclosed.
Male plug fiber optic connectors having a conversion adapter for mating with a dissimilar connector are disclosed along with cable assemblies using the same. The fiber optic connector comprises a ferrule, a connector housing, and a nose-piece having a pocked disposed at a front portion. The pocket of the nose-piece is configured for allowing optical mating with a dissimilar connector using the conversion adapter. In one embodiment, the nosepiece of the connector is disposed forward of a keying portion disposed on the nosepiece. The fiber optic connectors disclosed advantageously allow for optical mating with dissimilar optical connectors with a quick and easy assembly for rugged applications or other optical communication networks.
A method of fabricating an optical fiber ribbon is provided, the method including arranging a plurality of optical fibers adjacent to each other along a length of the optical fiber ribbon, applying an adhesive to the plurality of optical fibers, intermittently exposing the adhesive to a curing catalyst in at least one interstice between two adjacent optical fibers of the plurality of optical fibers to create bonding regions along the length of the optical fiber ribbon, and removing uncured adhesive from the plurality of optical fibers.
G02B 6/04 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage formés par des faisceaux de fibres
G02B 6/10 - OPTIQUE ÉLÉMENTS, SYSTÈMES OU APPAREILS OPTIQUES - Détails de structure de dispositions comprenant des guides de lumière et d'autres éléments optiques, p.ex. des moyens de couplage du type guide d'ondes optiques
An optical fiber cable is provided. The optical fiber cable includes an outer jacket having an outer surface defining an outermost surface of the optical fiber cable and an inner surface defining a central bore. The optical fiber cable includes a plurality of aramid fibers located in the central bore, and the plurality of aramid fibers have a relatively low total linear density such that a total linear density of all aramid fibers within the central bore is less than 10,000 dtex. The optical fiber cable includes at least one optical fiber located within the central bore, and the at least one optical fiber has a proof test of greater than 100 kpsi.
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