Opt Lett. 2014 Feb 1;39(3):723-6. doi: 10.1364/OL.39.000723.
A multiwavelength operation generated from an intracavity optical parametric oscillator (OPO) pumped by a passively Q-switched Nd:GGG laser with a Cr(4+):YAG saturable absorber is demonstrated. KTiOPO4 simultaneously worked as nonlinear OPO and Raman crystal. Maximum output powers of 302 mW at 1566.8 nm and 115 mW at 1124.9/1160.7 nm were obtained at a diode power of 10.5 W, corresponding to the optical-to-optical conversion efficiencies of 2.88% and 1.1%, respectively. The measured shortest pulse duration at 1566.8 nm was 1.61 ns, while the obtained minimum pulse duration at 1124.9/1160.7 nm was 2.88 ns.
从由被动调 Q Nd:GGG 激光器泵浦的腔内光参量振荡器 (OPO) 产生的多波长操作，演示了 Cr(4+):YAG 可饱和吸收体。KTiOPO4 同时作为非线性 OPO 和拉曼晶体工作。在 10.5 W 的二极管功率下，获得了 1566.8 nm 处的 302 mW 和 1124.9/1160.7 nm 处的 115 mW 的最大输出功率，分别对应于 2.88%和 1.1%的光-光转换效率。在 1566.8 nm 处测量到的最短脉冲持续时间为 1.61 ns，而在 1124.9/1160.7 nm 处获得的最短脉冲持续时间为 2.88 ns。
