基于衍射对称性的多程光路腔镜准直算法  

Algorithm of Cavity Alignment in Multi-Pass Amplifier System Based on Diffraction Symmetry

作　　者：王渊承[1] 周维[1] 谢兴全[2] 张鑫[1] 邓学伟[1] 王德恩[1] 袁强[1] 代万俊[1] 邓武[1] 胡东霞[1] 

机构地区：[1]中国工程物理研究院激光聚变研究中心,四川绵阳621900 [2]中国工程物理研究院计算机应用研究所,四川绵阳621900

出　　处：《中国激光》2014年第12期44-48,共5页Chinese Journal of Lasers

基　　金：国家高技术发展计划

摘　　要：腔镜准直是多程放大光路准直中的基础,针对高功率固体激光装置多束组并行准直对腔镜准直的要求,提出一套基于衍射对称性的腔镜准直算法,可以避免腔镜准直受到图像质量的影响而导致精度偏低。在神光Ⅲ主机装置上进行了该腔镜准直算法的实验验证,实验结果表明,相对于传统算法,采用基于衍射对称性的腔镜准直算法,可以将腔镜准直精度由8μrad提升至3.96μrad。Multi-pass amplification beam path alignment is based on cavity mirror alignment. To optimize multisegmental parallel cavity mirror alignment algorithm of high power solid-state lasers, a new algorithm of multi-pass beam path cavity mirror alignment based on diffraction symmetry is proposed, and the algorithm avoids the problem of low alignment accuracy caused by image quality. The accuracy of multi-pass amplification beam path alignment is improved from 8μrad up to 3.96 μrad. It has been verified on SG-Ⅲ facility.

关 键 词：图像处理 自动准直 腔镜 多程放大 

分 类 号：TN248.1[电子电信—物理电子学]