An optical fiber cable includes: optical fiber units each having optical fibers; a wrapping tube that wraps around the optical fiber units; a filling disposed inside the wrapping tube; and a sheath that covers the wrapping tube. The optical fiber units includes outer units that are disposed at an outermost layer of the optical fiber units. The outer units are twisted in an SZ shape around a cable central axis of the optical fiber cable. The filling is sandwiched between one of the outer units and the wrapping tube in a cross-sectional view.

An optical fiber cable including an optical fiber ribbon in a pipe, wherein the ribbon includes at least two optical fibers arranged side by side, and wherein at least two of the optical fibers are bonded intermittently along a length of the fibers.

An optical cable includes an optical module which includes first optical fibers and a first retaining element arranged about the first optical fibers. The module also includes second optical fibers arranged about the first retaining element, the second optical fibers being arranged on at least one circumference concentric with the first retaining element. The module also includes a second retaining element arranged about the second optical fibers, which is also substantially coaxial with the first retaining element. This optical module with coaxial retaining elements and fibers has a particularly high fiber density, while preserving the possibility to uniquely identify all the fibers.

An optical communication cable subassembly includes a cable core having optical fibers each comprising a core surrounded by a cladding, buffer tubes surrounding subsets of the optical fibers, and a binder film surrounding the buffer tubes. Armor surrounds the cable core, the binder film is bonded to an interior of the armor, and water-absorbing powder particles are provided on an interior surface of the binder film.

An optical fiber cable includes: a sheath; a core that is housed in the sheath and comprises optical fibers; tensile strength members embedded in the sheath; and ripcords embedded in the sheath. Recesses and protrusions are disposed alternately in a circumferential direction on an outer circumferential surface of the sheath. The recesses each include: two connecting portions respectively connected to radial inner ends of two adjacent protrusions; and a bottom surface positioned between the two connecting portions. In a transverse cross-sectional view, the ripcords are positioned inside some of the protrusions, and the tensile strength members are positioned inside the remaining protrusions.

The present invention relates to an optical fiber cable (400, 500) with flexible wrapping tubes comprising a plurality of unit bundles packed in the optical fiber cable (400, 500), where each unit bundle has a plurality of optical fibers (106) enveloped by a non-extruded film (100), and at least one of the unit bundles takes a non-circular shape in a packed configuration and a sheath (404, 504) enveloping the plurality of unit bundles. Each unit bundle is formed by wrapping the non-extruded film (100) around the optical fibers (106) such that width edges of the non-extruded film (100) overlap along the length of the optical fiber cable (400, 500). Alternatively, the non-extruded film (100) is wrapped around the plurality of optical fibers (106) helically.

Embodiments of an optical fiber cable are provided. The optical fiber cable includes a cable jacket and a plurality of buffer tubes contained within the cable jacket. Each of the plurality of buffer tubes has one or more optical fibers disposed therein. A thin film tube is contained within the cable jacket and disposed around the buffer tubes, and an armor layer is contained within the cable jacket and disposed around the thin film tube. Superabsorbent polymer (SAP) powder is disposed between the thin film tube and the armor layer. The SAP powder includes at least 1 wt % of silica particles.

The present disclosure relates to a fusion splice matched pair detachable connector for high fiber count applications where optical fiber alignment is maintained during processing of the detachable connector.

A method of marking an optical fiber that includes directing a laser beam onto a first colored layer of an optical fiber. The optical fiber includes a core and a cladding surrounding the core, the first colored layer surrounds the cladding, and the laser beam modifies the first colored layer to form one or more laser-modified regions along an outer surface of the first colored layer.

The present invention relates to an optical fiber cable (100, 200, 300) comprising a plurality of tubes (104) and a sheath (114) encapsulating the plurality of tubes (104) with a plurality of optical fibers (106). At least one tube of the plurality of tubes (104) has young's modulus that is different from other tubes and the young's modulus that is at least 30% more than young's modulus of the other tubes. In particular, the plurality of tubes (104) is arranged in an innermost layer (108) and an outermost layer (110). Additionally, young's modulus of the innermost layer (108) is greater than young's modulus of the outermost layer (110). Further, the diameter of the central strength member (102) is in a range of 1.5 millimetres to 6 millimetres.