Title :
Photobleaching effect on visible-region loss increase for heat-treated optical fibres in a hydrogen atmosphere
Author :
Noguchi, Keisuke ; Uesugi, Naohisa ; Shibata, Naotaka ; Ishihara, Koichi ; Negishi, Y.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
The photobleaching effect on the visible-region loss increase due to hydrogen was observed for the first time by argon-ion laser light launching in fibres. A 660 nm fluorescence intensity reduction for the bleached fibres was also observed.
Keywords :
optical fibres; optical losses; optical saturable absorption; 660 nm fluorescence intensity reduction; Ar-ion laser light; heat-treated optical fibres; photobleaching effect; visible-region loss increase;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850312
