Ofs Fitel, LLC

Brian Violette

John E Pacini

Jie Li

Robert S Dyer

Yaowen Li

David Burgess

Michael J Hines

Lei Huang

Jacob Ulrik Petersen

Disclosed herein is an optical cable comprising a support; flexible protective tubes helically wound around the support, each flexible protective tube comprising an optical fiber comprising an optical core; a cladding disposed on the core; and a primary coating external to the cladding; and a deformable material surrounding the optical fiber; an outer jacket surrounding the flexible protective tubes; wherein each optical fiber is about 0.5% to about 1.5% longer than its respective flexible protective tube; wherein an allowable strain on the optical cable with substantially zero stress on the optical fibers is determined by equations (1) and (2) below:  where d is the amount of optical fiber clearance for free movement within the flexible protective tube, D is an average helical diameter of the helically wound flexible protective tubes, and p is an average helical pitch of the helically wound flexible protective tubes.

Optical cable methods of manufacture thereof and articles comprising the same

An optical fiber having at least two polymer coatings, the optical fiber comprising: an optical fiber comprising a glass optical core and a glass cladding; a first polymer coating comprising a silicone polymer covering the optical fiber; and a second polymer coating covering the first polymer coating is provided.

UV-transparent optical fiber coating for high temperature application, and fibers made therefrom

A distributed sensing optical fiber cable is proposed. An optical fiber is positioned at the center of the cable and includes a core region, at least one cladding layer surrounding the core region, a protective coating covering the at least one cladding layer, and a tight buffer of elastomeric thermoplastic material disposed to surround the protective coating. The remainder of the cable structure includes a pair of strength members disposed longitudinally on either side of the optical fiber (the strength members formed of a glass-based, memory-less material) and a hard plastic jacket formed to encase the optical fiber and the pair of strength members, the plastic jacket preferably exhibiting an essentially rectangular profile.

Flat profile optical fiber cable for distributed sensing applications

Disclosed herein is an optical cable comprising a plurality of cable sensors helically wound around a support; and an outer jacket that is disposed on the plurality of cable sensors and surrounds the plurality of cable sensors; where each cable sensor comprises an optical fiber; where the optical fiber comprises an optical core upon which is disposed a cladding; a primary coating; a deformable material surrounding the optical fiber; and an outer tube surrounding the deformable material; where the optical fiber is of equal length to the outer tube; and where an allowable strain on the optical cable with zero stress on the optical fiber is determined by equations (1) and (2) below: where d is the amount of optical fiber clearance for free movement within the loose tube, D is an average pitch diameter of the plurality of cable sensors and p is an average pitch length of a helical turn of the plurality of cable sensors wound around the central strength member.

Optical cable for sensing, methods of manufacture thereof and articles comprising the same

Disclosed herein is an optical cable connection comprising a buffer sleeve having an inner portion and an outer portion; where the inner portion comprises an optical core that is operative to transmit light; and a tight buffer layer disposed on the core; where the buffer sleeve is trimmed back at its end to provide an exposed protruding length of the tight buffer layer with the core included therein; where the outer portion of the buffer sleeve is configured to form a socket that is operative to receive a connector ferrule; where the connector ferrule comprises; an annular tubular plug having a center opening; where the annular tubular plug mates with the socket formed in the outer portion of the buffer sleeve; a ferrule seated in the plug; where the ferrule receives the exposed protruding length of the tight buffer layer that extends axially outwardly from the buffer sleeve into the center opening of the ferrule.

Growing community of inventors

East Granby, CT, United States of America

Brian Violette