Effect of B₂O₃ on the spectroscopic properties in Er³⁺/Ce³⁺ co-doped tellurite-niobium glass

Abstract

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).

Keywords

Glass Sample / Band Fluorescence / Phonon Energy / Tellurite Glass / Glass Host

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