窄脉冲激光泵浦双池受激布里渊散射系统研究  

Two-cell Stimulated-Brillouin-scattering Systems Pumped with Narrow-pulse-width Laser

作　　者：何伟明[1] 吕志伟[1] 王骐[1] 马祖光[1] 

机构地区：[1]哈尔滨工业大学光电子技术研究所,哈尔滨150001

出　　处：《中国激光》1997年第1期46-50,共5页Chinese Journal of Lasers

基　　金：国家高技术惯性约束聚变主题;国家自然科学基金

摘　　要：对于窄脉冲激光泵浦双池受激布里渊散射(SBS)系统,其泵浦脉冲宽度和前沿形状以及振放双池系统的参数,都将影响到SBS的脉冲强度与转换效率。实验中采用了两个具有不同前沿的窄脉冲先后相继泵浦双池SBS系统。通过改变SBS放大池和聚焦透镜的焦距,观察到所产生的两个SBS脉冲具有不同的转换效率。利用振荡池产生的SBS调制种子光在放大池中的行波放大对此结果作了分析,由此提供了一种设计双池SBS系统参数的方法。The pumping laser pulse of narrow pulse-width together with its leading edge shape as well as parameters of the two-cell stimulated-Brillouin-scattering (SBS) systems have an influence on the SBS pulse intensity and conversion efficiency. Two narrow pulses with different leading edges pump the two-cell systems simultaneously. By changing the amplifier-cell length and the focal length, different conversion efficiencyies were observed. The two SBS pulses results are analyzed with transient seeded Stockes in the amplifier-cell. A method to design the two-cell systems is proposed.

关 键 词：受激布里渊散射 激光光束 泵浦 

分 类 号：TN245[电子电信—物理电子学]