激光二极管抽运主动调Q Nd∶GdVO_4自受激拉曼激光器  

Laser Diode Pumped Actively Q-Switched Nd∶GdVO_4 Self-Stimulated Raman Laser

作　　者：刘天红[1,2] 檀慧明[1] 王保山[1,2] 彭继迎[1,2] 苗杰光[1,2] 

机构地区：[1]中国科学院长春光学精密机械与物理研究所 [2]中国科学院研究生院,北京100039

出　　处：《中国激光》2006年第12期1593-1596,共4页Chinese Journal of Lasers

摘　　要：采用激光二极管(LD)抽运、主动调Q的方式,利用c向切割的Nd∶GdVO4晶体的自受激拉曼散射(self-SRS)效应,实现了结构紧凑、高效的脉冲拉曼激光器。在输入功率为1.8W,主动调Q10kHz时,自受激拉曼激光器产生了稳定的1176nm的斯托克斯(Stokes)脉冲光,斯托克斯光的单脉冲能量为10μJ,脉冲宽度为19ns。此时,自受激拉曼散射的阈值仅为510mW,斯托克斯光的转换效率为5.6%。实验结果表明,有效的自受激拉曼变频可以通过一个c向切割的Nd∶GdVO4晶体,采用主动调Q的方式来实现。Generation of compact and efficient self-stimulated Raman pulses by a laser diode （LD） pumped actively Q-switched c-cut Nd： GdVO4 laser is demonstrated. At 1.8 W incident pump power, the self-stimulated Raman laser produces stable 19 ns pulses at a Stokes wavelength of 1176 nm with 10 μJ pulse energy at 10 kHz repetition rate. The threshold of the self-stimulated Raman laser is 510 mW, the conversion efficiency from the diode pump to the Stokes is 5.6%. Experimental results reveal that efficient self-stimulated Raman conversion frequency can be achieved with a c-cut Nd：GdVO4 crystal and actively Q-switched.

关 键 词：非线性光学 拉曼激光器 自受激拉曼散射 主动调Q 

分 类 号：TN248.1[电子电信—物理电子学]