An optical fiber cable includes: a core including optical fibers; a sheath housing the core; and an interposition layer including fibers between the core and the sheath. Some of the fibers that are disposed from an outer end portion to an intermediate portion in a radial direction of the interposition layer are integrated by a matrix.

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 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.

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 invention relates to an optical fiber cable (100) comprising an optical fiber unit (102), optical fiber (104), a tight buffer layer (106), a sheath (108), a plurality of strength members (110a, 110b, 110c), a water swellable element (112) and a filling strength member (SM) 114. In particular, the optical fiber cable (100) is an all-dielectric communication cable with a preferential bending ratio between 1-2. Moreover, the strength members (110a, 110b, 110c) have an elastic modulus greater than 45 GPa and each strength member of the plurality of strength members (110a, 110b, 110c) has a diameter between 0.4 mm to 0.8 mm.

A multicore fiber includes: a cladding; and three or more and five or less cores disposed at rotationally asymmetric positions on a circumference centered at a center of the cladding. No core is disposed at the center of the cladding. Angles formed by adjacent ones of lines connecting the center of the cladding and respective ones of the cores are all larger than 60°.

The present invention relates to an optical fiber cable (100, 200, 300) comprising one or more optical fibers (102), one or more buffer tubes (104), a first layer (106), a sheath (108), one or more embedded strength members (110), a plurality of water swellable yarns (112), a ripcord (114), a plurality of bundles of optical fibers (202) and a unitube (304). In particular, the core encloses the one or more optical fibers (102) encapsulated by one or more layers. Moreover, the sheath (108) encapsulates the core. Furthermore, the sheath (108) comprises one or more embedded strength members (110) coated with a hydrophobic material. Further, thickness of the hydrophobic material coating is in a range of 20 microns to 100 microns. Additionally, contact angle between water and the one or more coated embedded strength member (110) is equal to or more than 100 degrees.

An optical fiber cable includes: a core including optical fibers; a reinforcing wrap that surrounds the core; and a sheath that accommodates the core and the reinforcing wrap. The reinforcing wrap includes an overlapping portion. A first end portion of the reinforcing wrap overlaps a second end portion of the reinforcing wrap at a portion of the reinforcing wrap in a circumferential direction of the optical fiber cable in a cross-sectional view.