Erbium doped gadolinium borate glasses for optical communication window applications

Abstract

The intent of the current work is to synthesize (79-x) B2O3 + 10ZnO+ 10BaO+ xGd2O3 + 1Er2O3 where (x = 0.0, 5.0, 10.0, 15.0, 20.0) glasses with various concentration of gadolinium (III) oxide using conventional melt-quenching technique. The prepared glasses were subjected to spectroscopic analysis for understanding their behaviour in optical and photoluminescence properties. The absorption bands of the prepared samples were investigated using absorption spectroscopy between 300 nm and 1700 nm. The stimulation from ground level 4I15/2 caused significant (Er3+ ions) absorption peaks to develop. The branching ratio, fluorescence full width at half maximum of NIR emission, and lifetime, of I13/2 level have all been assessed together with the Judd-Oflet parameters Ωλ (λ = 2, 4, 6). The absorption and emission cross-sections were assessed using the Judd-Ofelt and McCumber hypothesis. The reported values are sufficiently consistent to be taken into consideration for prospective application in the optical communication windows in C and L bands.