A fiber ribbon interconnect may include a fiber ribbon, a first optical connector at a first end of the fiber ribbon, and a second optical connector at a second end of the fiber ribbon. The fiber ribbon includes two or more cladding-strengthened glass optical fibers each having an outer surface. The fiber ribbon also includes a common protective coating that surrounds the outer surfaces of the two or more cladding-strengthened glass optical fibers.

The present disclosure provides a method for arranging a plurality of optical fiber ribbons in an optical fibre cable. The method includes a set of steps. The set of steps include a first step of receiving the plurality of optical fiber ribbons. Moreover, the set of steps include a second step of arranging the plurality of optical fiber ribbons in a plurality of circular arcs in the optical fibre cable. The plurality of circular arcs is substantially parallel.

A reinforcing sleeve is a member for collectively reinforcing spliced portions of a plurality of optical fiber core wires disposed side by side. The reinforcing sleeve includes a heat-shrinkable tube, a heat-meltable member, a tension member, and so on. The heat shrinkable tube is a cylindrical member having an approximately circular cross section. The tension member and the heat-meltable member are inserted into the heat-shrinkable tube. The heat-meltable member is disposed on an upper part of the tension member. Also, an optical fiber dispersion portion is formed on a surface of the tension member on a side of the heat-meltable member in a cross section perpendicular to a longitudinal direction of the reinforcing sleeve. The optical fiber dispersion portion includes an inclined portion that is formed so as to separate away from the heat-meltable member as being closer to an end portion of a width direction in a cross section perpendicular to the longitudinal direction of the tension member.

An optical fiber ribbon comprises a plurality of optical fibers arranged in parallel and a connecting resin layer containing a ribbon resin for coating and connecting the plurality of optical fibers, wherein each of the plurality of optical fibers has an outer diameter of 220 μm or less; and the ribbon resin contains a cured product of urethane (meth)acrylate, and an amount of silicon is 5 ppm or more and 80000 ppm or less and an amount of tin is 5 ppm or more and 30000 ppm or less at the surface of the connecting resin layer.

An optical fiber having an ink layer that includes an optical brightener is described. The optical brightener is a marker that permits identification of the fiber. The ink layer may also include a pigment, where either or both of the pigment and optical brightener may function as a marker for identifying the fiber. Bundles of two or more optical fibers, each of which includes an ink layer containing an optical brightener, are also described.

The present disclosure provides an optical fiber cable (200, 300) with a compressed core (206, 306) and manufacturing method thereof. The method includes bundling a plurality of optical transmission elements (202, 302) to form a core (206, 306) of the optical fiber cable (200, 300) and compressing the core (206, 306). The method further includes extruding a sheath (212, 312) around the compressed core (206, 306), wherein the core (206, 306) is compressed to a smaller diameter by a compression tool. The compression tool has a cylindrical cavity, wherein an internal diameter of the cylindrical cavity gradually decreases from a first end to a second end of the compression tool. The core enters from the first end of the compression tool with a diameter d and exits from the second end with a diameter d-Δd, such that Δd/d is greater than or equal to 0.05.

The purpose of the present invention is to provide, by a configuration or method different from conventional art, a coated optical fiber enabling reduced interface delamination between a glass fiber and a primary coating layer when the coated optical fiber is immersed in water, and a reduction of transmission loss increase. A coated optical fiber according to one embodiment of the present invention is provided with a glass fiber, a primary coating layer coated on the glass fiber, a secondary coating layer coated on the primary coating layer, and a colored layer coated on the secondary coating layer. The coated optical fiber is configured so that small water bubbles are generated substantially evenly within the primary coating layer when the coated optical fiber is immersed for 200 days in warm water of 60° C.

A plurality of optical fiber groups are housed in an optical fiber cable and which of the optical fiber groups optical fibers, which constitute the optical fiber groups, belong to can be identified depending on a covering of the optical fibers. Each of optical connectors (plug, receptacle) which are respectively attached to both ends of the optical fiber cable has regions, in which insertion holes in which the optical fibers are inserted and fixed one by one are formed to be arranged in a predetermined interval, in the same number as the number of the optical fiber groups, and even though the optical fibers in one optical fiber group are inserted and fixed in the insertion holes in an identical region, an arrangement order of the optical fibers in the region of the optical connector provided on one end is not maintained as an arrangement order of the optical fibers in the region of the optical connector provided on the other end. An optical fiber cable assembly which

An optical cable including a rollable optical fiber ribbon is provided. The optical cable includes a plurality of loose tubes, and a plurality of rollable optical fiber ribbons are disposed inside each loose tube. A plurality of loose tubes are disposed at the periphery of the central strength member. The length of each rollable optical fiber ribbon disposed inside the loose tube is 1% or more longer than the length of the corresponding loose tube.

Compared to an optical cable including a conventional ribbon, the optical fiber has a higher density and preferred transmission performance.

Certain splice arrangements include first and second laminate structures bonded around a splice location at which two or more optical fibers are spliced (e.g., fusion spliced) together. The first and second laminate structures each include a flexible polymeric sheet and a heat activated adhesive layer carried by the flexible polymeric sheet. Other splice arrangements include a protective barrier disposed about an optical splice. The protective barrier includes first and second protective layers bonded around the optical splice. Each protective layer include a film carrying an adhesive. The protective barrier may be sufficiently flexible to not restrict flexing the optical fibers at the splice location. Example splice arrangements have thicknesses of less than or equal to 1000 microns, or 900 microns, or 800 microns, or 700 microns, or 600 microns or 500 microns.