1.89μm Tm:YLF激光器输出特性分析
Electro-Optic Technology Application（2018）
Abstract
介绍了利用激光二极管双端泵浦高功率1.89μm Tm:YLF激光器,其线宽小于0.1 nm.腔内以Brewster角插入0.05 mm YAG F-P标准具强制起偏,获得1.89μm的水平偏振光,再依次加入0.05 mm和0.3 mm YAG F-P标准具稳定输出波长,实现窄线宽激光输出.当注入泵浦功率为137 W时,获得了输出波长为1889.3 nm 46 W的连续输出功率,其斜率效率为45.1％.随着泵浦功率由20 W增加到137 W,输出波长仅漂移了0.12 nm.当激光输出功率为15 W和30 W时,对应的光束质量分别为1.7和2.2.
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