Hydrogen-induced loss increases in germanium-doped single-mode optical fibres: long-term predictions

17 January 1985

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 21 (2) , 71-72
https://doi.org/10.1049/el:19850049

Abstract

A spectrally broad loss increase occurs in GeO₂-doped optical fibres exposed to hydrogen at elevated temperatures. This is the primary H₂-induced loss mechanism in GeO₂-doped single-mode fibres for temperatures above 20 C. Loss increases at 1.3 and 1.55 μm are predicted to be less than 0.01 dB km after 20 years.

Keywords

GEO2-DOPED OPTICAL FIBRES
H2-INDUCED LOSS MECHANISM
H2 DIFFUSION
SINGLE-MODE OPTICAL FIBRES
LONG-TERM PREDICTIONS

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