Title :
Fibre loss increase due to hydrogen generated at high temperatures
Author :
Murakami, Yasutaka ; Noguchi, Keisuke ; Ishihara, Koichi ; Negishi, Y.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
The loss changes at 1.39 and 1.88 ¿m are measured for various nylon-jacketed fibres at a high temperature of 200°C. The loss increase at 1.39 ¿m is due to the Si-OH-bond formation, and that at 1.88 ¿m is caused by the absorption of hydrogen molecules in the silica glass. It is found that the loss increase due to the OH-bond formation is in proportion to the time-integrated concentration of the generated hydrogen molecules.
Keywords :
bonds (chemical); diffusion in solids; losses; optical fibres; 200°C; H2 absorption; H2 diffusion; H2 generation; OH-bond formation; SiO2 glass; high temperatures; nylon-jacketed fibres; optical fibre loss;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840152
