We demonstrated a compact cavity-dumped Q-switched Yb:YAG laser based on a 72-pass pump module. A highly stable nanosecond pulse laser with a duration of 18.38 ns was achieved at a repetition rate of 100 kHz, which is pumped by multimode laser diode stacks at 969 nm. The average output power of more than 150 W is delivered in a good output beam characterized by M² = 1.53. The result shows that the pulse duration derived from simulation agrees well with the one retrieved from the experimental measurements. To the best of our knowledge, the 43.5% optical-optical efficiency is the highest reported to date from a cavity-dumped Q-switched Yb:YAG TDL (thin-disk laser).

中文翻译：

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基于 72 通道泵浦模块的高效、高重复率腔倾弃 Q 开关 Yb:YAG 薄盘激光器

我们展示了一种基于 72 通道泵模块的紧凑型腔倾倒 Q 开关 Yb:YAG 激光器。以 100 kHz 的重复频率实现了持续时间为 18.38 ns 的高度稳定的纳秒脉冲激光器，该激光器由 969 nm 的多模激光二极管堆栈泵浦。在以M ² = 1.53 为特征的良好输出光束中提供超过 150 W 的平均输出功率。结果表明，从模拟得出的脉冲持续时间与从实验测量中检索到的脉冲持续时间非常吻合。据我们所知，43.5% 的光学效率是迄今为止报告的腔倾倒 Q 开关 Yb:YAG TDL（薄盘激光器）的最高值。