Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7840698 | Journal of Luminescence | 2018 | 6 Pages |
Abstract
An Er3+/Yb3+ co-doped bismuthate (Bi2O3-B2O3-CaO) glass was prepared by melt quenching method. The samples were analyzed by X-ray diffraction (XRD), Fourier transform infrared (FT-IR), absorption and emission spectroscopy. The Judd-Ofelt parameters (Ωλ) were determined from the intensity of the absorption band to calculate the radiation parameters, such as the radiation lifetime (Ïrad), radiation transition probability (Arad) and branching ratio (βJJâ²) of 4I13/2 laser conversion of Er3+ ions. The effective emission bandwidth (ÎλP), stimulated emission cross section (Ïse) and gain bandwidth (Ïse à Îλp) were determined on the emission spectra, and the optimum doping concentration of Er2O3 was 0.5 mol%. The present work indicates that Er3+/Yb3+ co-doped bismuth calcium borate glass can be promising materials for solid state NIR lasers and fiber amplifiers.
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Physical and Theoretical Chemistry
Authors
Shangjiu Nian, Yin Zhang, Weijing Cao, Zhenning Wu, Jun Tang, Mingming Li, Nianying Zhou, Yan Shu,