Su Kuan-Wei, Chang Ya-Ting, Chen Yung-Fu
Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan.
Appl Opt. 2008 Dec 10;47(35):6675-9. doi: 10.1364/ao.47.006675.
An undoped YVO(4) crystal is employed to achieve efficient stimulated Raman scattering conversion in a diode-pumped actively Q-switched Nd:YAG laser. With an incident pump power of 16.2 W, an 1176 nm first Stokes average output power of 3.0 W was generated at a pulse repetition rate of 50 kHz, corresponding to an optical-to-optical conversion efficiency of 18.3%. Moreover, the maximum optical-to-optical conversion efficiency of 21.3% was found at 20 kHz. The maximum pulse energy is higher than 83 microJ at both 20 and 30 kHz. With an incident pump power of 7.6 W, the underestimated peak power of 43.5 kW was demonstrated at 20 kHz with mode-locked modulation.
采用未掺杂的YVO₄晶体在二极管泵浦主动调Q的Nd:YAG激光器中实现高效受激拉曼散射转换。在16.2W的入射泵浦功率下，以50kHz的脉冲重复频率产生了3.0W的1176nm一阶斯托克斯平均输出功率，对应的光光转换效率为18.3%。此外，在20kHz时发现最大光光转换效率为21.3%。在20kHz和30kHz时，最大脉冲能量均高于83微焦。在7.6W的入射泵浦功率下，在20kHz锁模调制时展示了43.5kW的低估峰值功率。
