Emission enhancement in Er^(3+)/Pr^(3+)-codoped germanate glasses and their use as a 2.7-μm laser material  

作　　者：李响潭 刘雪强 张丽艳 胡丽丽 张军杰 

机构地区：[1]Key Laboratory of Materials for High Power Laser,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences [2]Graduate University of Chinese Academy of Science

出　　处：《Chinese Optics Letters》2013年第12期63-65,共3页中国光学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Nos.51172252 and 61177083)

摘　　要：Emission enhancement at 2.7 μm is observed in Er^3＋/Pr^3＋--codoped germanate glasses when pumped by a 980-nm laser diode. Significant reductions in 1.5-μm emission and upeonversion intensity indicate efficient energy transfer between Er^3＋ and Pr^3＋; the energy transfer efficiency is as high as 77.4%. The mechanisms of energy transfer are discussed in detail. The calculated emission cross-section of Er^3＋/Pr^3＋- codoped germanate glass is 8.44× 10 ^-21 cm^2, which suggests that Er^3＋/Pr^3＋-codoped germanate glass can be used to achieve efficient 2.7-μm emission.Emission enhancement at 2.7 μm is observed in Er^3＋/Pr^3＋--codoped germanate glasses when pumped by a 980-nm laser diode. Significant reductions in 1.5-μm emission and upeonversion intensity indicate efficient energy transfer between Er^3＋ and Pr^3＋; the energy transfer efficiency is as high as 77.4%. The mechanisms of energy transfer are discussed in detail. The calculated emission cross-section of Er^3＋/Pr^3＋- codoped germanate glass is 8.44× 10 ^-21 cm^2, which suggests that Er^3＋/Pr^3＋-codoped germanate glass can be used to achieve efficient 2.7-μm emission.

关 键 词：PR m laser material Emission enhancement in Er codoped germanate glasses and their use as a 2.7 

分 类 号：TQ171.1[化学工程—玻璃工业]