We report a stable high-power all-solid-state Q-switched laser operating at 294.6 nm with a pulse width of 24 ns and a repetition rate of 20 kHz produced by intracavity sum-frequency generation and external frequency doubling in LiB₃O₅ and β-BaB₂O₄ crystals, respectively. Upon synchronizing the fundamental lasers, the maximum output power at 589 nm is 1.2 W, which is frequency doubled to produce up to 167.8 mW at 294.6 nm, thereby providing a conversion efficiency of 13.98%.

中文翻译：

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全固态调Q激光器，工作在294.6 nm

我们报道了一种稳定的高功率全固态调Q激光器，其工作在294.6 nm处，脉冲宽度为24 ns，在腔内和频产生以及LiB ₃ O _5中的倍频产生的重复频率为20 kHz和β- BaB ₂ O ₄晶体。同步基本激光器后，在589 nm处的最大输出功率为1.2 W，其频率翻倍，从而在294.6 nm处产生高达167.8 mW的功率，从而提供了13.98％的转换效率。