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Updated: May 23, 2026
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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Resonantly pumped 1.645 μm single longitudinal mode Er:YAG laser with intracavity etalons
Lingni Zhu1, Chunqing Gao, Ran Wang
1School of Opto-Electronics, Beijing Institute of Technology, Beijing, China.
Abstract:
We report on a 1.645 μm single longitudinal mode Er:YAG laser that was resonantly pumped by a 1.532 μm fiber laser, using intracavity etalons to generate single longitudinal mode operation. We obtained 0.749 W single longitudinal mode output power at 1.645 μm from an Er:YAG laser with two intracavity etalons. The M2-factors of the Er:YAG laser were 1.041 and 1.068 in the x and y directions, respectively.
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