期刊
APPLIED PHYSICS EXPRESS
卷 15, 期 6, 页码 -出版社
IOP Publishing Ltd
DOI: 10.35848/1882-0786/ac6da3
关键词
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资金
- National Natural Science Foundation of China (NSFC) [62035007, 61875078]
This study reports on the high-power and room temperature operation of an Er:Y2O3 ceramic laser based on home-developed high optical quality ceramic samples. By optimizing the pumping method and resonator design, a high slope efficiency was achieved.
We report on the high-power and room temperature operation of an Er:Y2O3 ceramic laser at similar to 2.7 mu m based on home-developed high optical quality ceramic samples. Pumped directly into the upper laser level with a spectrally narrowed 976 nm laser diode beam shaped to have a 1D top-hat profile, the laser-generated 13.4 W of CW output power with a slope efficiency of 16.0% with respect to absorbed pump power. In a modified resonator design, a lasing slope efficiency of 23.7% has been demonstrated. To our knowledge, this represents the highest power at similar to 2.7 mu m spectral region from a room temperature sesquioxide laser. (C) 2022 The Japan Society of Applied Physics
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