中文摘要：

The high phonon energy oxide of B2O3 is introduced into the Er3+/Ce3+co-doped tellurite-niobium glasses with composition of TeO2-Nb2O5-ZnO-Na2O.The absorption spectra,1.53 μm band fluorescence spectra,fluorescence lifetime and Raman spectra of Er3+in glass samples are measured together with the calculations of Judd-Ofelt spectroscopic parameter,stimulated emission and absorption cross-sections,which evaluate the effect of B2O3 on the 1.53 μm band spectroscopic properties of Er3+.It is shown that the introduction of an appropriate amount of B2O3 can further improve the 1.53 μm band fluorescence intensity through an enhanced phonon-assisted energy transfer(ET) between Er3+/Ce3+ions.The results indicate that the prepared Er3+/Ce3+co-doped tellurite-niobium glass with an appropriate amount of B2O3 is a potential gain medium for the 1.53 μm bandbroad erbium-doped fiber amplifier(EDFA).

英文摘要：

The high phonon energy oxide of B2O3 is introduced into the Er^3＋/Ce^3＋ co-doped tellurite-niobium glasses with composition of TeOz-NbzOs-ZnO-Na20. The absorption spectra, 1,53 μm band fluorescence spectra, fluorescence lifetime and Raman spectra of Er^3＋ in glass samples are measured together with the calculations of Judd-Ofelt spectroscopic parameter, stimulated emission and absorption cross-sections, which evaluate the effect of B203 on the 1.53 μm band spectroscopic properties of Er^3＋. It is shown that the introduction of an appropriate amount of B203 can further improve the 1.53μm band fluorescence intensity through an enhanced phonon-assisted energy transfer （ET） between Er^3＋/Ce^3＋ ions. The results indicate that the prepared Er^3＋/Ce^3＋ co-doped tellurite-niobium glass with an appropriate amount of B203 is a potential gain medium for the 1.53 μm bandbroad erbium-doped fiber amplifier （EDFA）.