Improvement of Fatigue Behavior of the Spliced Portion on Hermetically Carbon-Coated Fibers

Isamu FUJITA  Masahiro HAMADA  Haruhiko AIKAWA  Hiroki ISHIKAWA  Keiji OSAKA  Yasuo ASANO  

IEICE TRANSACTIONS on Communications   Vol.E76-B   No.4   pp.364-369
Publication Date: 1993/04/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Optical Fiber Cables and Related Technologies)
optical communication,  communication cable and wave guides,  hermetically carbon-coated fiber,  fatigue,  recoat,  fusion splice,  CO2 laser,  

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Improvement of fatigue behavior of a fusion spliced portion on a carbon-coated fiber is achieved by recoating carbon using a thermal-CVD process with a CO2 laser as a local heat source. The fatigue parameters, so-called n-values, of 121 and 94 are obtained on the non-spliced portion and the spliced portion, respectively. Assuming a life time prediction model, these high values have been proved to have an advantage in a long-term reliability and to be sufficient in a practical submarine cable use.