We report on a high-power diode-pumped Yb:KG(WO4)2 (Yb:KGW) mode-locked laser with a semiconductor saturable absorber mirror (SESAM). For 32.7 W of incident pump power, we generate 261 fs pulses with the maximum average output power of up to 13.0 W and spectrum centered around 1039 nm at 68.4 MHz, corresponding to 190 nJ of single pulse energy and 0.72 MW of peak power. The optical-to-optical conversion efficiency is 39.8%, and the slope efficiency is 64.4%. The Yb:KGW laser exhibits a power stability better than 0.543% of the root-mean-square in 2 h.

中文翻译：

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二极管泵浦 13 W Yb:KGW 飞秒激光器

我们报告了一种带有半导体可饱和吸收镜 (SESAM) 的高功率二极管泵浦 Yb:KG(WO4)2 (Yb:KGW) 锁模激光器。对于 32.7 W 的入射泵浦功率，我们产生 261 fs 脉冲，最大平均输出功率高达 13.0 W，光谱以 1039 nm 为中心，频率为 68.4 MHz，对应于 190 nJ 的单脉冲能量和 0.72 MW 的峰值功率。光光转换效率为39.8%，斜率效率为64.4%。Yb:KGW 激光器在 2 小时内表现出优于 0.543% 的均方根的功率稳定性。