Fan Li, Fan Ya-Xian, Li Yu-Qiang, Zhang Huaijin, Wang Qin, Wang Jin, Wang Hui-Tian
Department of Physics and Nanjing National Laboratory of Microstructures, Nanjing University, Nanjing 210093, China.
Opt Lett. 2009 Jun 1;34(11):1687-9. doi: 10.1364/ol.34.001687.
We report a high-efficiency cw Raman conversion with a BaWO(4) Raman crystal in a diode-end-pumped Nd:YVO(4) laser. The Raman threshold is as low as 3.6 W of diode power at 808 nm. The highest output power obtained at the 1,180 nm first-order Stokes line is 3.36 W under the diode power of 25.5 W, corresponding to a slope efficiency of 15.3% and a diode-to-Stokes optical conversion efficiency of 13.2%. The intracavity Raman conversion efficiency is 21.5% with respect to the available output of the 1,064 nm fundamental.
我们报道了在二极管端面泵浦的Nd:YVO(4) 激光器中，利用BaWO(4) 拉曼晶体实现的高效连续波拉曼转换。拉曼阈值低至808 nm 二极管功率3.6 W。在25.5 W 二极管功率下，1180 nm 一阶斯托克斯线获得的最高输出功率为3.36 W，对应斜率效率为15.3%，二极管到斯托克斯光转换效率为13.2%。相对于1064 nm 基频的可用输出，腔内拉曼转换效率为21.5%。
