Title :
Visible fluorescence from heat-treated GeO2-doped silica optical fibre in hydrogen atmosphere
Author :
Uesugi, Naohisa ; Noguchi, Keisuke ; Hata, Nobuhiko ; Shibata, Yoshitaka ; Negishi, Y.
Author_Institution :
NTT Ibaraki Electrical Communication Laboratory, Tokai, Japan
Abstract :
A fluorescence at 657.7 nm observed for heat-treated optical fibres in a hydrogen atmosphere is reported. The fluorescence intensity is related to the short wavelength loss increase of optical fibres. The origin of the fluorescence is assumed to be defect centres associated with GeO2, or GeO.
Keywords :
fluorescence; germanate glasses; heat treatment; luminescence of inorganic solids; optical fibres; optical losses; silicon compounds; 657.7 nm; GeO; GeO2; H atmosphere; SiO2-GeO2; defect centres; fluorescence; germanate glasses; heat-treated optical fibres; short wavelength loss increase;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19840730
