In this paper, a high-power Ho:YAG laser in-band pumped by a Tm-doped fiber laser at 1931 nm is reported. A maximum output power of 142.2 W is achieved at 2091 nm using a single-end-pumped configuration, corresponding to a slope efficiency of 56.7%. This is, to the best of our knowledge, the highest output power directly generated by bulk Ho-oscillators in the 2.1 µ m spectral region.

中文翻译：

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掺有Tm的光纤激光器在1931 nm处单端泵浦的142 W Ho：YAG激光器

本文报道了一种高功率的Ho：YAG激光器，该激光器在1931 nm处被掺有Tm的光纤激光器带内泵浦。使用单端泵浦配置在2091 nm处可获得142.2 W的最大输出功率，对应于56.7％的斜率效率。据我们所知，这是大体积Ho振荡器直接在2.1 µm光谱范围内直接产生的最高输出功率。