摘要
采用两级布里渊结构压缩8ns的Nd:YAG激光,研究了基频光和倍频光的受激布里渊散射(SBS)压缩过程。实验中采用四氯化碳作为SBS介质,经第一级双池SBS压缩后,获得了1.5ns左右的Stokes脉冲;第二级采用单池SBS压缩,分别使用基频光和倍频光作为泵浦光,获得了最短为60ps的Stokes脉冲。实验证明,在一定条件下,利用SBS压缩脉宽可以获得比介质的声子寿命更短的脉冲。
The picosecond pulse was obtained by two-stage stimulated Brillouin scattering (SBS) compressor to compress 8 ns laser pulse. The experiment used CCl4 as SBS medium. The laser pulse duration was compressed to 1.5 ns by the first stage compressor. In the second compress stage, the experiment investigated the compress procession using 532 nm and 1064 nm as pumping light separately. The shortest pulse of 60 ps has been obtained. The results show that the pulse duration shorter than the medium acoustic lifetime can be achieved by SBS compressor.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2003年第12期1184-1186,共3页
High Power Laser and Particle Beams
基金
国家863计划项目资助课题
国家自然科学基金资助课题(60278033)
关键词
受激布里渊散射
脉冲压缩
皮秒脉冲
Brillouin scattering
Carbon inorganic compounds
Pulse width modulation
Pumping (laser)
