Open AccessEffect of Tm3＋-doping concentration on the spectral properties in tellurite glass
Author(s) -
Chen He,
Liu Yue-hui,
Yao Xiao-Xu,
Zhouming Feng
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.4427
Subject(s) - materials science , doping , radiative transfer , wavelength , luminescence , spontaneous emission , bandwidth (computing) , emission spectrum , absorption (acoustics) , absorption spectroscopy , emission intensity , spectral line , analytical chemistry (journal) , optics , optoelectronics , laser , chemistry , physics , telecommunications , composite material , chromatography , astronomy , computer science
The tellurite glass 70TeO2-20WO3-10ZnO in different Tm3+-doping co ncentration were prepared. According to the absorption spectra,the Judd-Oflet strength parameters were calculated by using Judd-Ofelt theory. The spontaneous-emission probabilities,branch ratios and radiative lifetime of each level of Tm3 were given.The emission spectra of Tm3-doping in various concentrations were studied.The effective bandwidth and stimulated emission cross-section at the peak wavelength of the emission band were also investigated. Aft er comparing the spectral properties at various Tm3 concentra tions, we concluded that the luminescence intensity and effective bandwidth were maximum when the Tm3-doping concentration ranges from 0.8wt%—1wt%. The Tm3-doped tellurite glass is an ideal host for optical ampli fier working on S-band.