An optical connector-equipped fiber connection structure according to an embodiment includes at least three groups including two or more optical fibers adjacent to each other. In the groups, two or more of the optical fibers extend from a first multi-core connector to a second multi-core connector without intersecting with each other. Optical fibers of two groups in the at least three groups intersect with each other in a midway point going from the first multi-core connector to the second multi-core connector. Optical fibers of groups other than the two groups extend from the first multi-core connector to the second multi-core connector without intersecting with the other optical fibers extending from the first multi-core connector.

A fiber optic distribution cable includes a central inner jacket formed from one of a polyvinyl chloride or a low smoke zero halogen material, a plurality of optical fibers disposed within the inner jacket, and a plurality of first strength members disposed within the inner jacket. The fiber optic distribution cable further includes an outer jacket surrounding the central inner jacket, the outer jacket formed from the one of the polyvinyl chloride or the low smoke zero halogen material, and a plurality of second strength members disposed between the outer jacket and the central inner jacket. A fiber density of the cable is greater than 0.65 fibers per square millimeter.

Aspects of the present disclosure describe distributed fiber optic sensing (DFOS) distributed acoustic sensing (DAS) systems, methods, and structures that advantageously provide the localization of utility poles along a route of fiber optic cable.

The present invention relates to a composite body including an elongated adhesive body and a plurality of linear members, the plurality of linear members being stuck around the adhesive body.

Fiber optic connectors, cable assemblies and methods for making the same are disclosed. In one embodiment, the optical connector comprises a housing and a ferrule. The housing comprises a longitudinal passageway between a rear end and a front end, and, a part of the rear portion of the housing comprises a round cross-section and a part of the front portion of the housing comprises a non-round cross-section with a transition region disposed between the rear portion and the front portion.

An optical system comprising: an optical fiber defining a longitudinal end; a dust cap disposed adjacent to the longitudinal end of the optical fiber, the dust cap comprising: a body comprising: a first end and a second end; and a bore extending from the first end of the body toward the second end of the body; and an optical reflector disposed within the body in optical communication with the bore.

The present disclosure provides a protected cable connector assembly. The protected cable connector assembly includes a cable gland body, a gland nut, a grommet, an optical fibre cable, a protected connector and a protective grip. The cable gland body includes a first threaded portion, a second threaded portion and an unthreaded portion. The gland nut includes internal threads. In addition, the internal threads of the gland nut engage with threads of the first threaded portion of the cable gland body. Further, a total length of the gland nut is about 17.87 millimeters. The grommet is positioned partially inside the cable gland body. The protected cable connector enables the optical fibre cable to terminate into an optical fibre distribution box.

A method of preparing a flame retardant grafted polyolefin resin is provided. The method includes a step of reacting in an extrusion barrel a reactive polyolefin and a monomeric flame retardant agent to form the flame retardant grafted polyolefin resin. The reactive polyolefin has a functional group including a moiety selected from the group consisting of anhydrides, epoxies, carboxylic acids, ketones, and isocyanates. The monomeric flame retardant agent has an amine functional group. The method also includes a step of extruding the flame retardant grafted polyolefin resin. Also provided is a flame retardant grafted polyolefin resin that can be made according to the method. Further provided is a flame retardant cable that incorporates can incorporate the flame retardant grafted polyolefin resin.

A fiber optic distribution cable includes a jacket formed from one of a polyvinyl chloride or a low smoke zero halogen material. The jacket includes an outer surface and an inner surface, wherein the outer surface is an exterior surface of the cable and the inner surface defines an interior space of the cable. The fiber optic distribution cable further includes a plurality of optical fibers disposed within the interior space, and a plurality of strength members disposed within the interior space. A fiber density of the cable is greater than 1.3 fibers per square millimeter.

An illuminated harness includes a front panel assembly and a rear panel assembly. A side-illuminating fiber optic cable is attached to the front panel assembly and the rear panel assembly, including a first belt portion and a second belt portion joining the front panel assembly to the rear panel assembly, combining to form a belt. The fiber optic cable also forms a first shoulder strap portion joining the front panel assembly to the rear panel assembly and a second shoulder portion strap joining the front panel assembly to the rear panel assembly, forming a pair of shoulder straps. A light source is coupled to the fiber optic cable and arranged to transmit light into the fiber optic cable.