摘要
为了更好地实现多镜面大视场主动光学望远镜波前像差抑制、提升望远镜探测能力极限,本文基于望远镜视场边缘内置的错位型曲率传感器进行波前感知,并利用功率谱对波前感知结果进行分析,进而基于波前像差的空间频率特征进行调控。首先,基于复光场理论分析了非瞳面对系统波前调控的影响机理。其次,分析了本方法在多镜面大视场主动光学望远镜调控过程中的精度特性。再次,利用桌面实验对多镜面大视场主动光学望远镜调控的可行性进行了验证。最终,波前重建结果与理论波前相关性高于0.85。利用功率谱对各个视场的空间频率特性进行了分析,与单纯使用均方根对多镜面影响敏感度进行分析的方法相比,灵敏度提升了20%。
In order to achieve better wavefront aberration suppression and higher detection ability for ac⁃tive telescopes with multiple mirrors and large fields of view,this paper investigated wavefront sensing based on the single-shot curvature sensor at the edge of the telescope's field of view,and realize system control based on analysis of spatial characteristics using power spectrum.Firstly,based on the theory of complex light field,the basic principle and characteristic law of multi surface wavefront control were ex⁃pressed.Secondly,the accuracy characteristics of this method in the control process of multi mirror large field of view active optical telescopes were analyzed.Thirdly,the feasibility of controlling was verified us⁃ing desktop experiments.Finally,the correlation between the wavefront reconstruction results and the the⁃oretical wavefront is higher than 0.85.Using power spectrum,the spatial frequency characteristics sensi⁃tivity of each field of view are improved by 20%,compared to root mean square.
作者
安其昌
吴小霞
唐境
李洪文
AN qichang;WU Xiaoxia;TANG Jing;LI Hongwen(Changchun Institute of Optics,Fine Mechanics and Physics,Chinese Academy of Sciences,Changchun 130033,China;Graduate University of Chinese Academy of Sciences,Beijing 100039,China;Jilin Provincial Key Laboratory of Intelligent Wavefront Sensing and Control,Changchun 130033,China)
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2024年第6期785-791,共7页
Optics and Precision Engineering
基金
国家自然科学基金项目(No.12133009,No.12373090)
中国科学院青年创新促进会(No.2020221)。
关键词
曲率传感
波前像差
大视场主动光学
大口径望远镜
curvature sensing
wavefront aberration
active optics with large field of view
large aperture telescope
