Concentration-dependent luminescence properties in Er3+-doped TeO2-ZnO-La2O3 glasses |
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| Authors: | Zhou Ya-xun Xu Xing-chen Chen Fen Lin Jian-hui and Yang Gaobo |
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| Affiliation: | College of Information Science and Engineering, Ningbo University, Ningbo 315211, China;College of Information Science and Engineering, Ningbo University, Ningbo 315211, China;College of Information Science and Engineering, Ningbo University, Ningbo 315211, China;College of Information Science and Engineering, Ningbo University, Ningbo 315211, China;College of Information Science and Engineering, Ningbo University, Ningbo 315211, China |
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| Abstract: | Erbium-doped tellurite-based glasses (Er3+:TeO2-ZnO-La2O3) are prepared by the conventional melt-quenching technique, and concentration-dependent luminescence properties of Er3+ are investigated. A significant spectral broadening of the 1.53 μm fluorescence corresponding to 4I13/2 → 4I15/2 transition is observed, and the fluorescence decaying becomes a nearly exponential way with the increasing Er3+concentration. Radiation trapping is evoked to explain the broadening of 4I13/2 → 4I15/2 emission line of Er3+ ions. The optimum doping content of Er2O3 for 1.53 μm fluorescence emission is about 1.5 mol%. |
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