341 W连续波双端泵浦Tm:YAP平板激光器

Pub Date : 2023-07-13 DOI:10.1007/s10946-023-10138-6

Qunlong Long, Jimeng Gao, Qingwen Han, Lei Wang, Yong He, Yefei Mao

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引用次数: 0

摘要

在这项研究中，我们展示了一种高功率连续波(CW) Tm:YAP平板激光器，该激光器由激光二极管在双端泵浦配置中端泵浦。激光器输出功率高达341.6 w1.99 μm，相对于822 W的总入射泵浦功率，斜率效率为49.4%，光-光转换效率为41.6%。据我们所知，这是Tm:YAP激光器的最高输出功率。在输出功率为300w时，测得光束质量因子M2在x方向上为260，在y方向上为4。此外，测量到在最高输出功率下的功率不稳定性为0.73%，持续30 min。此外，我们利用COMSOL 5.0仿真软件对Tm:YAP板状晶体内部的温度分布进行了理论分析。

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341 W Continuous-Wave Dual-End-Pumped Tm:YAP Slab Laser

In this study, we demonstrate a high-power continuous-wave (CW) Tm:YAP slab laser that is endpumped by laser diodes in a dual-end-pumped configuration. The laser delivers an output power of up to 341.6Wat 1.99 μm, corresponding to a slope efficiency of 49.4% and an optical-to-optical conversion efficiency of 41.6% with respect to the total incident pump power of 822 W. To our knowledge, this is the highest output power of a Tm:YAP laser. At an output power of 300 W, the beam quality factors M² are measured to be 260 in the x direction and 4 in the y direction, respectively. In addition, the power instability at the highest output power is measured to be 0.73% for 30 min. Also, we theoretically analyze the temperature distribution within the Tm:YAP slab crystal by the simulation software COMSOL 5.0.

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