Loss stability assurance against hydrogen for submarine optical fiber cable

Author

Ohnishi, Masatoshi ; Yoshizawa, Nobuyuki ; Miyajima, Yoshiaki ; Kawata, Osamu ; Negishi, Yukiyasu

Author_Institution

Electr. Commun. Labs., NTT, Ibaraki, Japan

Volume

6

Issue

2

fYear

1988

fDate

2/1/1988 12:00:00 AM

Firstpage

203

Lastpage

209

Abstract

Hydrogen generation resulting from electrochemical reactions between cable metals and condensed water or moisture permeated through the cable jacket was studied. It was found that hydrogen generation increases exponentially as time elapses and tends to saturation after about one month. Partial pressure distribution along the cable of hydrogen generated in the immersed range of a damaged cable was analyzed by means of the diffusion equation and the optical loss increase was estimated. It was shown that a water-blocking resin effectively prevents water penetration and hydrogen diffusion along the cable

Keywords

environmental degradation; hydrogen; optical cables; optical communication equipment; optical fibres; optical losses; submarine cables; cable jacket; electrochemical reactions; optical loss increase; partial pressure distribution; permeated moisture; submarine optical fiber cable; water-blocking resin; Cable shielding; Equations; Hydrogen; Moisture; Optical losses; Optical saturation; Power cables; Resins; Stability; Underwater vehicles;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.3990

Filename

3990