Effect of Ce₂O₃ on the 1.53 μm spectroscopic properties in Er³⁺-doped tellurite glasses

Abstract

Er³⁺/Ce³⁺ co-doped tellurite-based glasses with composition of TeO₂-ZnO-Na₂O are prepared by high- temperature melt-quenching technique. Effects of Ce₂O₃ content on the 1.53 μm band fluorescence spectra and fluorescence lifetime of Er³⁺ are measured and investigated. It is found that the tellurite glass containing Ce₂O₃ with molar concentration of 0.25% exhibits an increment of 13% in 1.53 μm fluorescence intensity and an increment of 15% in the ⁴I_13/2 level lifetime. The results indicate that the prepared tellurite-based glass with a suitable Er³⁺/Ce³⁺ codoping concentration is an excellent gain medium applied for broadband Er³⁺-doped fiber amplifier (EDFA) pumped with a 980 nm laser diode.

Keywords

Fluorescence Lifetime / Glass Sample / Tellurite Glass / Level Lifetime / Dope Fiber Amplifier