摘要
针对大型固体激光装置中大口径传输反射镜的面型精度要求,提出了一种基于周向开孔的大口径矩形反射镜支撑方法,以及3种支撑布局结构。通过仿真分析获得了不同支撑布局的支撑结构参数对镜面面形精度的影响规律。仿真结果表明,菱形支撑布局的镜面面型精度更优,且在45°姿态条件下,镜面重力变形的总体和残余面型畸变的PV值均接近λ/6,验证了支撑方法的可行性。该研究为传输反射镜支撑布局选择和镜片结构参数确定提供了依据,也为传输反射镜支撑方案和结构详细设计提供了技术支撑。
Large-aperture rectangular transport mirrors are key optics of the beam transport system of large solid-state laser facilities.The mirror surface deformation under gravity field,directly impacts the wavefront quality of laser beam.According to the mirror surface accuracy requirements of such facilities,a lateral support method using mirror side holes is proposed and three support configurations are designed for large-aperture rectangular mirrors.With numerical simulation,the effect of key structural dimensions on mirror surface deformation are studied and discussed.The results indicate that the diamond-shaped support configuration performs better mirror surface accuracy,the PV values of both global and residual distortions are aboutλ/6 with 45°mirror orientation,basically validating the feasibility of the support method and providing a theoretical basis of support configuration selecting and dimensions optimization for detailed lateral support structure design of rectangular transport mirrors.
作者
肖尧
汪宝旭
朱明智
XIAO Yao;WANG Baoxu;ZHU Mingzhi(Institute of Systems Engineering,China Academy of Engineering Physics,Mianyang 621999,China)
出处
《兵器装备工程学报》
北大核心
2025年第7期290-295,311,共7页
Journal of Ordnance Equipment Engineering
基金
NSFC青年基金项目(52007177)。
关键词
固体激光装置
传输反射镜
面型精度
反射镜支撑
有限元分析
solid-state laser facility
transport mirror
surface accuracy
mirror support
finite element analysis
