【摘 要】
：
2.0μm emission property of a new germanate-tellurite glass with Ho3+/yb3+codoping is synthesized and analyzed.Efficient 2.0μm emission of Ho3+ ions sensitized by Yb3+ ions from the host glass was obse
【机 构】
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Key Laboratory of Materials for High Power Lasers, Shanghai Institute of Optics and Fine Mechanics,
【出 处】
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第七届中国功能玻璃学术研讨会暨新型光电子材料国际论坛
论文部分内容阅读
2.0μm emission property of a new germanate-tellurite glass with Ho3+/yb3+codoping is synthesized and analyzed.Efficient 2.0μm emission of Ho3+ ions sensitized by Yb3+ ions from the host glass was observed under 980nm pumping.Based on the measured absorption spectra, the Judd-Ofelt parameters were calculated and discussed.Strong emission around 2.0μm is observed and the sensitization of Ho3+ is realized by codoping of Yb3+ ions.The radiative transition probability and radiative lifetime of Ho3+∶5I7→5I8 in GTLaF-1 are 88.22s-1 and 11.33ms, respectively.The maximum emission cross section of Ho3+∶5I8→5I7 transition is 4.36×10-21 cm2 around 2.0μm.The energy transfer efficiency and energy transfer rate are calculated to be 81.2% and 6506.55s-1 in GT glass.The energy transfer efficiency is calculated and fitted the decay signals.The good spectroscopic properties suggest that Ho3+/Yb3+codoped germanate-tellurite glass may become an attractive host for developing solid state lasers operating in the mid-infrared.
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