Abstract: A structured optical fiber cabling system configured to connect first and second layers of switches in a mesh network is disclosed. The system comprises groups of fiber optic ports arranged side-by-side, with each group including a plurality of the fiber optic ports distributed in a vertical direction. A plurality of fiber optic jumper assemblies each include a horizontal segment and a plurality of legs and fiber optic connectors extending from the horizontal segment, with each fiber optic connector configured to connect to a corresponding fiber optic port of the plurality of the fiber optic ports at the same vertical location in each group of the array.

Abstract: A fiber optic cable assembly comprises first and second cable legs each including a tight buffer surrounding coated optical fibers, and a reduced thickness buffer connecting region, with cable leg being devoid of any surrounding jacket and any tensile strength member. A fiber optic cable assembly devoid of a tensile strength member mechanically coupled to a connector comprises a travel limiting feature that serves to limit travel of the ferrule and inhibit ferrule decoupling when tension is applied to a fiber optic cable.

Abstract: An optical cable and method for forming an optical cable is provided. The cable includes a cable jacket including an inner surface defining a channel and an outer surface and also includes a plurality of optical fibers located within the channel. The cable includes a seam within the cable jacket that couples together opposing longitudinal edges of a wrapped thermoplastic sheet which forms the cable jacket and maintains the cable jacket in the wrapped configuration around the plurality of optical fibers. The method includes forming an outer cable jacket by wrapping a sheet of thermoplastic material around a plurality of optical core elements. The method includes melting together portions of thermoplastic material of opposing longitudinal edges of the wrapped sheet such that a seam is formed holding the sheet of thermoplastic material in the wrapped configuration around the core elements.

Abstract: A structured optical fiber cabling system configured to connect first and second layers of switches in a mesh network is disclosed. The system comprises groups of fiber optic ports arranged side-by-side, with each group including a plurality of the fiber optic ports distributed in a vertical direction. A plurality of fiber optic jumper assemblies each include a horizontal segment and a plurality of legs and fiber optic connectors extending from the horizontal segment, with each fiber optic connector configured to connect to a corresponding fiber optic port of the plurality of the fiber optic ports at the same vertical location in each group of the array.

Abstract: A structured optical fiber cabling system configured to connect first and second layers of switches in a mesh network is disclosed. The system comprises a plurality of fiber optic modules each including a plurality of first fiber optic ports distributed in a vertical direction when the fiber optic modules are installed in a chassis. A plurality of fiber optic jumper assemblies each include a horizontal segment and a plurality of legs and fiber optic connectors extending from the horizontal segment, with each fiber optic connector configured to connect to a corresponding fiber optic port of the plurality of first fiber optic ports at the same vertical location in each fiber optic module.

Abstract: The present disclosure relates to an optical fiber having a core and a cladding, where the cladding is doped with a dopant. The cladding has a dopant concentration gradient in the radial direction such that a concentration of the dopant changes with respect to radial distance from a core-cladding interface. Doping the cladding of the optical fiber enables ablation of the fiber surface with a line source to provide an ablated wedge or crack such that cleaving can be achieved by applying a stress force to the fiber after ablation or by applying a pull force during ablation.

Abstract: An optical cable and method for forming an optical cable is provided. The cable includes a cable jacket including an inner surface defining a channel and an outer surface and also includes a plurality of optical fibers located within the channel. The cable includes a seam within the cable jacket that couples together opposing longitudinal edges of a wrapped thermoplastic sheet which forms the cable jacket and maintains the cable jacket in the wrapped configuration around the plurality of optical fibers. The method includes forming an outer cable jacket by wrapping a sheet of thermoplastic material around a plurality of optical core elements. The method includes melting together portions of thermoplastic material of opposing longitudinal edges of the wrapped sheet such that a seam is formed holding the sheet of thermoplastic material in the wrapped configuration around the core elements.

Abstract: A structured optical fiber cabling system configured to connect first and second layers of switches in a mesh network is disclosed. The system comprises a plurality of fiber optic modules each including a plurality of first fiber optic ports distributed in a vertical direction when the fiber optic modules are installed in a chassis. A plurality of fiber optic jumper assemblies each include a horizontal segment and a plurality of legs and fiber optic connectors extending from the horizontal segment, with each fiber optic connector configured to connect to a corresponding fiber optic port of the plurality of first fiber optic ports at the same vertical location in each fiber optic module.

Abstract: A fiber optic cable includes a cable jacket having an inner surface that defines a core, and an optical transmission core element provided in the core that includes an optical fiber group of optical fiber ribbons located within a buffer tube, wherein the optical fiber group comprises a plurality of optical fiber subgroups, each subgroup having one or more sets of 6 fiber base ribbon subunits arranged in substantially planar fashion, each 6 fiber base ribbon subunit comprising six 200 ?m optical fibers in a cured ribbon matrix.

Abstract: A system and method of delivering fiber optic communication service is provided. The method includes monitoring a strain signal generated by a strain-sensing optical fiber embedded in a roadway. The method includes comparing the strain signal to a predetermined allowable strain threshold of an optical communication cable associated with the strain-sensing optical fiber. The method includes relieving strain at a position along a length of the optical communications cable when the strain signal is determined to exceed the predetermined allowable strain threshold.

Abstract: A system and method of delivering fiber optic communication service is provided. The method includes monitoring a strain signal generated by a strain-sensing optical fiber embedded in a roadway. The method includes comparing the strain signal to a predetermined allowable strain threshold of an optical communication cable associated with the strain-sensing optical fiber. The method includes relieving strain at a position along a length of the optical communications cable when the strain signal is determined to exceed the predetermined allowable strain threshold.

Abstract: 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 an outer surface and a channel defined in the outer surface that extends in the longitudinal direction along at least a portion of the length of the cable. The cable includes an elongate strength element extending in the longitudinal direction within the channel.

Abstract: 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 an outer surface and a channel defined in the outer surface that extends in the longitudinal direction along at least a portion of the length of the cable. The cable includes an elongate strength element extending in the longitudinal direction within the channel.

Abstract: An optical cable includes a core member and a plurality of strands wound around the core member in an SZ configuration, the SZ configuration having at least two reversal sections and a helical section extending along a longitudinal length between the at least two reversal sections. A helical lay length of the wound strands is variable along the longitudinal length of the helical section. A method of forming an optical cable includes providing a core member and surrounding the core member with a plurality of strands by winding the strands in an SZ configuration that includes a helical section extending longitudinally between at least two reversal sections.

Abstract: An optical fiber assembly including an optical fiber ribbon and an optical connector is provided. The optical fiber ribbon includes a ribbon matrix, a first group of optical fibers embedded in the ribbon matrix, a second group of optical fibers embedded in the ribbon matrix, and a split in the ribbon matrix at a first end of the ribbon forming a space between a first end of the first group of optical fibers and a first end of the second group of optical fibers. The optical connector includes a body, a first array of openings defined in the body, and a second array of openings defined in the body. The second array is spaced from the first array. The bond between the ribbon matrix and the optical fibers prevents elongation of the split.

Abstract: An optical cable includes a core member and a plurality of strands wound around the core member in an SZ configuration, the SZ configuration having at least two reversal sections and a helical section extending along a longitudinal length between the at least two reversal sections. A helical lay length of the wound strands is variable along the longitudinal length of the helical section. A method of forming an optical cable includes providing a core member and surrounding the core member with a plurality of strands by winding the strands in an SZ configuration that includes a helical section extending longitudinally between at least two reversal sections.

Abstract: A method of manufacturing a fiber optic cable includes steps of extruding a first jacketing material around strength members, over armor, and to form a cavity between the strength members and beneath the armor. The cavity is configured to support an optical fiber. The method further includes a step of co-extruding a second jacketing material with the first jacketing material to form a discontinuity of material, where the discontinuity is interior to the exterior surface of the fiber optic cable.

Abstract: A method of manufacturing a fiber optic cable includes steps of extruding a first jacketing material around strength members, over armor, and to form a cavity between the strength members and beneath the armor. The cavity is configured to support an optical fiber. The method further includes a step of co-extruding a second jacketing material with the first jacketing material to form a discontinuity of material, where the discontinuity is interior to the exterior surface of the fiber optic cable.

Abstract: Fiber optic assemblies include subunit cables wrapped in binders. The assemblies have small cross sections and low bend radii while maintaining acceptable attenuation losses. Stranding of the subunit cables allows ease of access to the individual cables during installation.

Abstract: An optical fiber assembly including an optical fiber ribbon and an optical connector is provided. The optical fiber ribbon includes a ribbon matrix, a first group of optical fibers embedded in the ribbon matrix, a second group of optical fibers embedded in the ribbon matrix, and a split in the ribbon matrix at a first end of the ribbon forming a space between a first end of the first group of optical fibers and a first end of the second group of optical fibers. The optical connector includes a body, a first array of openings defined in the body, and a second array of openings defined in the body. The second array is spaced from the first array. The bond between the ribbon matrix and the optical fibers prevents elongation of the split.