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10 October 2020 The research on the edge thermal effect of the thin disk crystal in thin disk lasers
Yongqian Chen, Jing Dong, Yonggao Yue, Lijuan Deng, Zhengfeng Li, Zhili Ma, Yanlong Cao, Wenhan Zeng, Lujun Cui
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Proceedings Volume 11544, High-Power Lasers and Applications XI; 115440I (2020) https://doi.org/10.1117/12.2575082
Event: SPIE/COS Photonics Asia, 2020, Online Only
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Abstract
The thin-disk shape laser crystal is the core component of the thin disk laser. In the experiment, we found that the crystal edge is prone to abnormal high temperature in the operation, which causes the thin disk laser's conversion efficiency to decrease, and even the make crystal cracks. In order to solve this problem, two aspects that may cause this effect are researched during the disc crystal manufacturing process, and finally determined that the splash of solder during the packaging process is the main cause of this problem. In the end, we used the edge chamfering method to eliminate this problem, and the finally obtained thin disk crystal can reduce the temperature by 50% and increase the conversion efficiency by 15% when the laser operates.
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Yongqian Chen, Jing Dong, Yonggao Yue, Lijuan Deng, Zhengfeng Li, Zhili Ma, Yanlong Cao, Wenhan Zeng, and Lujun Cui "The research on the edge thermal effect of the thin disk crystal in thin disk lasers", Proc. SPIE 11544, High-Power Lasers and Applications XI, 115440I (10 October 2020); https://doi.org/10.1117/12.2575082
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KEYWORDS
Disk lasers
Luminescence
Crystals
Laser crystals
Laser damage threshold
Tunable lasers
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