Title :
Refractive index change induced by ultraviolet laser irradiations in erbium-doped tellurite glasses
Author :
Fujiwara, T. ; Nakamoto, T. ; Honma, T. ; Benino, Y. ; Komatsu, T.
Author_Institution :
Dept. of Chem., Nagaoka Univ. of Technol., Japan
Abstract :
A large change of refractive index, Δn, induced by ultraviolet excimer laser irradiations in Er2O3-doped tellurite-based glass, which is a promising material for fibre amplifiers, has been obtained. The value of Δn/n larger than 5% was successfully achieved, and amplitude of Δn depending on Er2O3-concentrations has been found.
Keywords :
Bragg gratings; erbium compounds; laser beam effects; optical fibre amplifiers; optical glass; refractive index; sodium compounds; tellurium compounds; ultraviolet radiation effects; visible spectra; zinc compounds; Bragg gratings; EDFAs; Er2O3-doped tellurite-based glass; Na2O-ZnO-TeO2:Er2O3; fibre amplifiers; refractive index change; ultraviolet excimer laser; ultraviolet laser irradiation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20031031
