Opt Express. 2023 Feb 27;31(5):8696-8703. doi: 10.1364/OE.486533.
Efficient diode-pumped passively Q-switched Nd:YVO yellow and orange lasers are developed with the pulse pumping scheme and the intracavity stimulated Raman scattering (SRS) and second harmonic generation (SHG). A Np-cut KGW is exploited in the SRS process to generate the yellow 579 nm laser or the orange 589 nm laser in a selectable way. The high efficiency is achieved by designing a compact resonator to include a coupled cavity for intracavity SRS and SHG and to provide a focused beam waist on the saturable absorber for reaching an excellent passive Q-switching. The output pulse energy and peak power can reach 0.08 mJ and 50 kW for the orange laser at 589 nm. On the other hand, the output pulse energy and peak power can be up to 0.10 mJ and 80 kW for the yellow laser at 579 nm.
高效二极管泵浦被动调 Q Nd:YVO 黄-橙激光器采用脉冲泵浦方案和腔内受激拉曼散射（SRS）和二次谐波产生（SHG）技术开发。在 SRS 过程中，采用 Np 切 KGW 以可选择的方式产生 579nm 的黄光或 589nm 的橙光激光。通过设计一个紧凑的谐振腔，包括腔内 SRS 和 SHG 的耦合腔，并在可饱和吸收体上提供聚焦的光束腰，实现了高效率，从而达到了优异的被动调 Q 性能。对于 589nm 的橙光激光，输出脉冲能量和峰值功率可达到 0.08mJ 和 50kW。另一方面，对于 579nm 的黄光激光，输出脉冲能量和峰值功率可高达 0.10mJ 和 80kW。
