A connectorized fiber optic cabling assembly includes a loose tube fiber optic cable and a connector assembly. The cable has a termination end and includes an optical fiber bundle including a plurality of optical fibers, at least one strength member, and a jacket surrounding the optical fiber bundle and the strength member. The connector assembly includes a rigid portion and defines a fiber passage. The connector assembly is mounted on the termination end of the cable such that the optical fiber bundle extends through at least a portion of the fiber passage. The plurality of optical fibers undergo a transition from a ribbonized configuration to a loose, non-ribbonized configuration in the rigid portion of the connector assembly.

An optical fiber ribbon manufacturing device comprising: a tape die 20 for coating a plurality of single-core coated optical fibers 2 with a photocurable resin; a split die 30 for forming a split portion in the photocurable resin present between the single-core coated optical fibers; and a light irradiation device 40 for irradiating the photocurable resin with light to cure the photocurable resin, wherein both the tape die 20 and the split die 30 are temperature-controlled or only the split die 30 is temperature-controlled, a temperature of the tape die 20 is higher than a temperature of the split die 20, and the temperature of the split die 20 is lower than the temperature of the tape die 30.

[Problem] When a surface of the optical fiber ribbon is rough, the microbending loss is increased due to the irregularities formed on the surface of the optical fiber ribbon.

[Solution] An intermittently connected optical fiber ribbon of the present disclosure, includes: a plurality of optical fibers arranged in a predetermined direction; and connecting portions that intermittently connect two adjacent ones of the optical fibers. A peripheral cover portion formed of resin configuring the connecting portions is formed on a periphery of the optical fibers. An arithmetic mean roughness Ra of a surface of the peripheral cover portion is 0.41 μm or lower.

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 and a plurality of bonding regions intermittently spaced along a length of the optical fiber ribbon. At each bonding region, at least one bond is formed between two optical fibers of the plurality of optical fibers. Further, the at least one bond comprises a first material applied to outer surfaces of the two optical fibers and a second material applied over the first material. The first material is different from the second material, and at least one of the first material or the second material includes a colorant configured to identify the optical fiber ribbon. Also disclosed are embodiments of making such an optical fiber ribbon as well as of optical fiber cables including such an optical fiber ribbon.

An optical cable includes: twisted optical fiber units each including a fiber group formed by optical fibers. At least one of the optical fiber units includes a filling that wraps an outer circumference of the fiber group.

Embodiments of the disclosure relate to an optical fiber cable having at least one optical fiber, a cable jacket and a foam layer. The cable jacket includes an inner surface and an outer surface in which the outer surface is an outermost surface of the optical fiber cable. The inner surface is disposed around the at least one optical fiber. The foam layer is disposed between the at least one optical fiber and the cable jacket. The foam layer is made of an extruded product of at least one thermoplastic elastomer (TPE), a chemical foaming agent, and a crosslinking agent. The foam layer has a closed-cell morphology having pores with an average effective circle diameter of less than 100 μm. Further, the foam layer has a compression modulus of less than 1 MPa when measured at 50% strain.

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.

Aspects and techniques of the present disclosure relate to an apparatus for providing 200 micron, or smaller, coated optical fibers with a 250 micrometer pitch diameter in preparation for insertion into a Multi-fiber Push On connector (MPO) and/or splicing apparatus. The apparatus can sort, arrange, and clamp optical fibers into a proper sequence to allow the coated optical fibers to be aligned for processing, for example, connectorization and/or splicing. The apparatus includes a separator element that defines grooves for receiving and sequencing coated optical fibers with respect to each other to set a uniform pitch diameter.

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.

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.