Design and performance of nonmetallic waterproof optical fiber cable using water-absorbent polymer

A nonmetallic optical fiber cable waterproofed with absorbent polymer was developed. Methods are proposed for evaluating the reliability of absorbent polymer in order to apply it as a waterproofing material, and a type of polyacrylic acid is selected. In addition, a waterproofing design is establish...

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Bibliographic Details
Published in:Journal of lightwave technology 1989-04, Vol.7 (4), p.740-746
Main Authors: Kukita, S., Nakai, T., Hayashi, A., Koga, H.
Format: Article
Language:English
Subjects:
Applied sciences
Estimation theory
Exact sciences and technology
Manufacturing
Materials reliability
Optical design
Optical fiber cables
Optical fiber losses
Optical fibers
Optical losses
Optical materials
Optical polymers
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:A nonmetallic optical fiber cable waterproofed with absorbent polymer was developed. Methods are proposed for evaluating the reliability of absorbent polymer in order to apply it as a waterproofing material, and a type of polyacrylic acid is selected. In addition, a waterproofing design is established based on a theoretical estimate of the water penetration length in the cable space. Among other findings, it was shown that the optical fiber loss of water-penetrated cable increases due to freezing. The allowable penetration length of waterproof cables can be determined so as to suppress this loss increase. Cables manufactured using this new design and absorbent polymer showed performance sufficient for practical application.< >
ISSN:0733-8724
1558-2213
DOI:10.1109/50.19105