硅酸盐学报

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

分类号：O782+.6

出版年,卷(期):页码：2018,46(1):0-0

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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