Infra-red optical loss increase for silica fibre in cable filled with water |
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Authors: | Uesugi N. Murakami Y. Tanaka C. Ishida Y. Mitsunaga Y. Negishi Y. Uchida N. |
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Affiliation: | NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan; |
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Abstract: | Loss increase characteristics of optical fibre in cable filled with water are reported. Drastic loss increase around 1.24 ?m is observed for both graded-index and single-mode fibres. The origin of the loss increase is found to be due to hydrogen gas diffused into the silica glass interstitially. |
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