受激布里渊散射相位共轭激光组束规律  

Study of beam combination by stimulated Brillouin scattering

作　　者：丁迎春[1] 吕志伟[1] 何伟明[1] 

机构地区：[1]哈尔滨工业大学光电子技术研究所,黑龙江哈尔滨150001

出　　处：《强激光与粒子束》2002年第3期353-356,共4页High Power Laser and Particle Beams

基　　金：1999年教育部"跨世纪优秀人才培养计划"基金;国家 863惯性约束聚变领域资助课题;国家自然科学基金 (60 0 880 0 1)资助

摘　　要：提出了一种新的 SBS激光组束的方法。此方法中 ,一束按时间分布的激光脉冲序列作为泵浦光从 SBS放大池的一端入射 ,另一束 Stokes频移种子光从 SBS池的另一端入射 ,Stokes种子光在 SBS池的相互作用区提取泵浦光能量。研究了组束效率和输出脉宽随脉冲串个数、间隔和泵浦功率密度等的变化规律。A new method of laser beam combination by SBS was proposed. In this method, the pump pulse cluster, which consists of series pulses that was distributed by various time, was incident at one side while the Stokes seed was incident at the other side of the SBS cell, The Stokes seed beam extracted energy from the input pulse cluster in the interaction region of the SBS cell. Energy reflectivity and pulse width of the Stokes seed were calculated on condition of various pulse cluster, seed and medium. The results show that highly effective beam combination is obtained by back injecting Stokes seed into amplified SBS cell and the extracting energy from the pulse cluster of the pump.

关 键 词：激光组束 相位共轭 受激布里渊散射 组束效率 脉冲串 SBS 

分 类 号：O437.2[机械工程—光学工程] TN24[理学—光学]