Judd-Ofelt analysis and near infrared emission properties of the Er ions in tellurite glasses containing WO<sub>3</sub> and CdO期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Judd-Ofelt analysis and near infrared emission properties of the Er ions in tellurite glasses containing WO₃ and CdO

Authors:	G Bilir G Ozen ML Öveço?lu

Institution:	^a Department of Physics, Istanbul Technical University, Maslak-Istanbul 34469, Turkey ^b Faculty of Chemical & Metallurgical Engineering, Department of Metallurgical & Materials Science Engineering, Istanbul Technical University, Maslak-Istanbul 34469, Turkey

Abstract:	The influence of erbium (Er³⁺) ion concentration on the infrared emission at 1.5 μm in TeO₂-WO₃ and TeO₂-CdO-WO₃ glasses was studied. The samples were prepared by conventional melt quenching method. The optical properties were studied by measuring the absorption and luminescence spectra at room temperature. The Judd-Ofelt parameters (Ω_t), transition probabilities, branching ratios of various transitions and their radiative lifetimes were calculated from the optical absorption spectra. Absorption and emission cross-section spectra and the Stark Levels splitting for the ⁴I_13/2 to ⁴I_15/2 transition of Er³⁺ centered at 1.5 μm were determined.

Keywords:	Tellurite glasses Er³⁺ doped fiber amplifiers Absorption Luminescence Judd-Ofelt analysis
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