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掺铥钇镓石榴石激光晶体的生长及其光学性能
作者:张卓群 刘文宇 马世会 于浩海 张怀金 
单位:山东大学 晶体材料国家重点实验室 济南 250100 
关键词:掺铥钇镓石榴石晶体 光浮区法 晶体生长 光学性能 
分类号:O782+.6
出版年,卷(期):页码:2018,46(1):64-69
DOI:
摘要:

 采用光浮区法生长了掺铥钇镓石榴石(Tm:Y3Ga5O12, Tm:YGG)激光晶体,探索了Tm:YGG晶体的光学性能,测试了其室温吸收谱并计算了吸收截面和发射截面。使用中心波长为795 nm的激光二极管作为泵浦源,实现了Tm:YGG晶体的连续激光输出,得到了波长为2 012.8 nm的激光,阈值为0.515 W,斜效率为9.9%,光光转换效率为9.3%。结果表明Tm:YGG晶体在2 μm波段可能有好的应用前景。

 Tm3+ doped yttrium gallium garnet (i.e., Tm:Y3Ga5O12, Tm:YGG) laser crystal was grown by an optical floating zone method. The optical properties of the Tm:YGG crystal was investigated. The absorption cross section and emission cross section were calculated based on the absorption spectra of the Tm:YGG. When pumped by a 795 nm laser diode, a continuous-wave Tm:YGG laser at 2 012.8 nm was realized at a threshold of 0.515 W, a slope efficiency of 9.9% and an optical conversion efficiency of 9.3%. The experimental results show that the Tm:YGG crystal is a potential material for the laser at 2 μm.

基金项目:
国家自然科学基金项目(51422205);国家重点研发计划项目(2016YFB0701002)资助。
作者简介:
张卓群(1992—),男,硕士研究生。
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