We report, for the first time to our knowledge, on acousto-optically Q-switched operation of a compact Yb:KLu(WO₄)₂ crystal laser, demonstrated at pulse repetition frequencies ranging from 60 kHz down to 3 kHz. 5.03 W of average output power at 1040.2 nm was produced at 60 kHz, with optical-to-optical and slope efficiencies of 50% and 62%. Self-Raman conversion was realized at pulse repetition frequencies not higher than 50 kHz; a maximum Stokes output power of 0.25 W at 1138.2 nm was generated at 20 kHz while the fundamental output power reached 2.20 W, the self-Raman conversion efficiency was determined as 6.0%. The resulting Raman pulse energy, duration, and peak power were, respectively, 12.5 μJ, 2.1 ns, and 6.0 kW.

据我们所知，我们第一次报告了紧凑型 Yb:KLu(WO ₄ ) ₂晶体激光器的声光调Q操作，其脉冲重复频率范围从 60 kHz 到 3 kHz。在 60 kHz 下产生 5.03 W 1040.2 nm 的平均输出功率，光对光和斜率效率分别为 50% 和 62%。在不高于50 kHz的脉冲重复频率下实现了自拉曼转换；在 20 kHz 下产生 1138.2 nm 的最大斯托克斯输出功率为 0.25 W，而基波输出功率达到 2.20 W，自拉曼转换效率确定为 6.0%。由此产生的拉曼脉冲能量、持续时间和峰值功率分别为 12.5 μJ、2.1 ns 和 6.0 kW。