A communication cable is surrounded by a tape with overlapped first and second longitudinal edges. The overlapped portion of the tape extends parallel to the longitudinal length of the communication cable, which is also parallel to the longitudinal central axis of the cable core. An attachment is provided between the overlapped portions of the tape. The attachment may be formed by an adhesive layer between the overlapped portions of the tape or a melting together of the overlapped portions of the tape. In either case, the tape forms a circumferential protective seal around the cable core.

Embodiments of an optical fiber cable are provided. The optical fiber cable includes at least one optical fiber, a buffer tube surrounding the at least one optical fiber, and at least one tensile element wound around the buffer tube. The at least one tensile element has a laylength of at least 200 mm. The optical fiber cable also includes an exterior jacket surrounding the tensile element. The exterior jacket is made up of at least one polyolefin, at least one thermoplastic elastomer, and at least one high aspect ratio inorganic filler. Further, the exterior jacket has an averaged coefficient of thermal expansion of no more than 120(10.sup.−6) m/mK.

Embodiments of an optical fiber cable configured for installation in a roadbed are provided. The optical fiber cable includes an optical fiber, a cable jacket surrounding the optical fiber, and an upjacket surrounding the cable jacket. The upjacket does not leach a chemical or chemicals into the roadbed that soften the roadbed. Also provided are embodiments of a method of producing an optical fiber cable configured for installation in a roadbed. Further, embodiments of a method of deploying an optical fiber cable into a roadbed are provided. The method involves the steps of forming a channel in the roadbed, inserting an optical fiber cable into the channel, and closing the channel so as to bury the optical fiber cable in the roadbed.

An optical fiber cable comprising an optical fiber, and a jacketing layer including at least two or more layers of a jacketing inner layer and a jacketing outer layer formed in this order concentrically, wherein the jacketing layer comprises at least two or more layers of a jacketing inner layer and a jacketing outer layer formed in this order concentrically; a material constituting the jacketing inner layer is composed of a resin material having an oxygen permeability of 2.0 cc.Math.20 μm/(m.sup.2.Math.day.Math.atm) or less; a material constituting the jacketing outer layer comprises at least one selected from a polyolefin-based resin, a polybutylene terephthalate-based resin, and a fluorine-based resin containing no chlorine atom in its structure; and the following general formula (i) and (ii) are satisfied when an outer diameter of the optical fiber is denoted by A (μm), an outer diameter of the optical fiber cable is denoted by B (μm), and a thickness of the jacketing outer layer is denoted by c (μm):
900≤A≤1100  (i)
0.40≤2×c/(B−A)≤0.70  (ii).

Disclosed is a non-steel high strength data transmission cable having a strength member (5) and a core (1). The high strength data transmission cable includes a length of a core-cable (10), the length of core-cable (10) includes core (1) plus at least. one. fiber-optic conductor (2) that is: (i) disposed in a helical shape; and (ii) completely encased in a solid, flexible material.

Also disclosed is a process for making a high strength data transmission cable. The high strength data transmission cable is capable of being wound on a winch under tensions and surging shocks experienced by a fishing trawler, and provides high quality data signal transmission and resolution so as to permit use for transmitting data during fish trawl operation from high-resolution sonars used to monitor fish caught.

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 .Math.m. Further, the foam layer has a compression modulus of less than 1 MPa when measured at 50% strain.

An optical fiber protection system includes an optical fiber, a light source, a protection circuit, a sensor, and a controller. The light source is configured to transmit a signal to the optical fiber. The protection circuit extends along a length direction of the optical fiber. The sensor is electrically connected to the protection circuit. The controller is electrically connected to the sensor and the light source.

An optical fiber cable including a central strength member, a first plurality of tight-buffered ribbon stacks, a binder film, and a cable sheath. The central strength member extends along a longitudinal axis of the optical fiber cable. The tight-buffered ribbon stacks are SZ-stranded around the central strength member. An interstitial space is provided between adjacent tight-buffered ribbon stacks. A binder film continuously and contiguously surrounds the first plurality of tight-buffered ribbon stacks along the longitudinal axis. The binder film includes first portions and at least one second portion. Each of the at least one second portion of the binder film extends into one of the interstitial spaces of the first plurality of tight-buffered ribbon stacks. The cable sheath continuously and contiguously surrounds the binder film along the longitudinal axis, and the cable sheath is coupled to the first portions of the binder film.

An opto-electrical cable may include an opto-electrical cable core and a polymer layer surrounding the opto-electrical cable core. The opto-electrical cable core may include a wire, one or more channels extending longitudinally along the wire, and one or more optical fibers extending within each channel. The opto-electrical cable may be made by a method that includes providing a wire having a channel, providing optical fibers within the channel to form an opto-electrical cable core, and applying a polymer layer around the opto-electrical cable core. A multi-component cable may include one or more electrical conductor cables and one or more opto-electrical cables arranged in a coax, triad, quad configuration, or hepta configuration. Deformable polymer may surround the opto-electrical cables and electrical conductor cables.

An optical connector cable including an optical cable, a first resin member, and a second resin member is disclosed. The optical cable includes a plurality of optical fibers and a sheath surrounding the plurality of optical fibers. End portions of the plurality of optical fibers extend to the outside from an end surface of the sheath. The first resin member holds the end portions of the plurality of optical fibers extending to the outside from the end surface of the sheath. The second resin member covers at least a part of the first resin member and an end portion of the sheath.