基于受激布里渊散射的高能高功率相位共轭激光  

Phase conjugation lasers based on stimulated Brillouin scattering with high-power and high-energy

作　　者：Akinyimika Adewale 王雨雷 白振旭 李云飞 吕志伟 Akinyimika Adewale;Wang Yulei;Bai Zhenxu;Li Yunfei;Lu Zhiwei(Center for Advanced Laser Technology,Hebei University of Technology,Tianjin 300401,China;Hebei Key Laboratory of Advanced Laser Technology and Equipment,Hebei University of Technology,Tianjin 300401,China;Department of Physics,Federal University of Technology Akure,P.M.B 704 Akure,Nigeria)

机构地区：[1]河北工业大学先进激光技术中心,天津300401 [2]河北工业大学河北省先进激光技术与装备重点实验室,天津300401 [3]阿库拉联邦理工大学物理系,尼日利亚阿库拉704

出　　处：《强激光与粒子束》2021年第11期62-75,共14页High Power Laser and Particle Beams

基　　金：National Natural Science Foundation of China(62075056)。

摘　　要：受激布里渊散射是一种三阶非线性光学过程,具有完全背向散射的相位共轭特性,利用这种特性,可以补偿高能高功率激光系统中强泵浦而引起的相位畸变,从而实现高光束质量激光输出。过去几十年开展了大量理论和实验研究以提升受激布里渊散射相位共轭镜(SBS-PCM)的作用效果,一部分研究集中在研究适合高功率激光系统应用的液体介质和介质纯化,一部分集中在SBS-PCM的结构优化(包括双池结构、结构参数优化、旋转楔板结构等)。回顾了影响SBS-PCM作用效果的主要因素,以及SBS-PCM在高功率激光系统中的应用,总结了近年来的一些应用成果,为SBS-PCM的实验研究提供了参考。Stimulated Brillouin scattering(SBS)is a third-order nonlinear process,which is phased conjugation reflected in the SBS phase conjugation mirror(SBS-PCM).Therefore,it is a very useful tool for the compensation of wavefront distortion induced by strongly thermally stressed active material,especially in high-power and high-energy lasers.To maximize the effectiveness of SBS-PCM,many research efforts have been poured in both theoretically and experimentally in the past decades.Several researchers have studied the liquid medium that is the best fit for SBS-PCM in high power laser systems;some have investigated the geometry(such as two-cell structure,choice of the optimum parameters,and the addition of a rotating wedge)of the system that will give the most appropriate desired characteristics;while some researched the impurities of the selected liquid.This work presents a review of the factors determining the performance of SBS-PCM,the applications of SBS-PCM in high power lasers,and recent scientific achievements in the SBS-PCM high power laser systems.This work is proposed as a reference and guiding manual for SBS-PCM-related experiments and research.

关 键 词：受激布里渊散射 相位共轭镜 能量反射率 光学击穿 重复频率 

分 类 号：TN242[电子电信—物理电子学]