Strain of an optical fiber in undersea cable manufacture during its insulation jacket extrusion process

Chung-Shin Ma

doi:10.1117/12.481329

25 June 2002 Strain of an optical fiber in undersea cable manufacture during its insulation jacket extrusion process

Chung-Shin Ma

Proceedings Volume 4639, Optical Fiber and Fiber Component Mechanical Reliability and Testing II; (2002) https://doi.org/10.1117/12.481329
Event: High-Power Lasers and Applications, 2002, San Jose, California, United States

Abstract

Fiber used in an undersea cable encounters different stresses from fiber manufacture to final cable manufacture. Usually fiber experiences the highest stress at its required prooftest during fiber manufacture. For the processes of an undersea cable, fiber usually experiences much less stresses. However, one of the cabling processes was identified to have higher stress than expected, which is the insulation jacket extrusion of a deep-water cable. This paper models the fiber strain in this process and proves its consistency with observed data. The cause of higher fiber strain is believed to be from thermal expansion of the filling compound gel in the loose tube portion of the cable. This change of gel is modeled to demonstrate that the fibers are affected locally and are stretched simultaneously with gel movement. This phenomenon is temporary and the fiber strain changes with the gel temperature during the manufacturing process.

Citation Download Citation

Chung-Shin Ma "Strain of an optical fiber in undersea cable manufacture during its insulation jacket extrusion process", Proc. SPIE 4639, Optical Fiber and Fiber Component Mechanical Reliability and Testing II, (25 June 2002); https://doi.org/10.1117/12.481329

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