Title :
Visible-region optical absorption property for germanium-doped silica optical fibres induced by UV light propagation
Author :
Noguchi, K. ; Uesugi, N. ; Suzuki, K.
Author_Institution :
NTT Electrical Communications Laboratories, Tokai, Japan
Abstract :
Visible-region absorption and fluorescence are first observed for GeO2-doped silica optical fibres propagated by UV light in the 350¿370 nm region. An absorption band at 1.97 eV and fluorescence at 1.91 eV are observed in the UV-propagated fibre. The absorption and fluorescence are considered to be caused by creation of the oxygen-hole centre.
Keywords :
germanium; light absorption; optical fibres; silicon compounds; GeO2-doped silica optical fibres; SiO2:Ge; UV light propagation; absorption band; fluorescence; oxygen-hole centre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19860353
