量子电子学报, 2006, 23 (3): 0295, 网络出版: 2010-06-07
云南天文台1.2m望远镜61单元自适应光学系统
61-element adaptive optical system for 1.2 m telescope of Yunnan Observatory
摘要
云南天文台1.2m望远镜61单元自适应光学系统已经完成升级改造并投入使用。该自适应光学系统主要由倾斜跟踪控制回路、高阶校正回路以及高分辨力成像系统组成。为了提高系统的跟踪精度,倾斜跟踪控制回路由两级倾斜校正回路串联而成,用于校正望远镜的跟踪误差和大气湍流引起的倾斜跟踪误差。高阶校正回路主要由一套哈特曼波前传感器、一块61单元变形反射镜以及一套高速数字波前处理机组成。系统中哈特曼波前传感器的工作波段为400~700nm,系统成像波段为700~900nm。在介绍61单元自适应光学系统各组成部分的基础上,对该系统的性能进行了分析,并给出了实际天文恒星目标的高分辨力自适应光学成像观测结果。
Abstract
The 61-element adaptive optical system for the 1.2 m telescope of Yannan Observatory had been upgraded and in operation for astronomical observation. It is made up of the fine tracking loop,the higher-order correction loop and the high resolution imaging system.In order to improve the low-frequency compensation performance,the fine tracking system,which is used for correcting the vibration error of the telescope and the tip-tilt error induced by atmospheric turbulence,consists of two cascade control loop. The higher-order correction loop consists of a Hartmann-Shack wavefront sensor,a 61-element deformable mirror,and a high speed digital wavefront sensor. The wavelengths for the Hartmann-Shack wavefront sensor and the imaging observation range from 400~700 nm and 700~1000 nm respectively.The 61-element upgraded adaptive optical system for 1.2 m telescope of Yunnan Observatory is briefly described. The performance on the 61-element upgraded adaptive optical system is analyzed. Furthermore,the observational results for the stars are presented.
饶长辉, 姜文汉, 张雨东, 凌宁, 李梅, 张学军, 李彦英, 官春林, 陈东红, 沈锋, 廖周, 汤国茂, 周璐春, 王彩霞, 张昂, 吴碧琳, 魏凯. 云南天文台1.2m望远镜61单元自适应光学系统[J]. 量子电子学报, 2006, 23(3): 0295. RAO Chang-hui, JIANG Wen-han, ZHANG Yu-dong, LING Ning, LI Mei, ZHANG Xue-jun, LI Yan-ying, GUAN Chun-lin, CHEN Dong-hong, SHEN Feng, LIAO Zhou, TANG Guo-mao, ZHOU Lu-chun, WANG Cai-xia, ZHANG Ang, WU Bi-lin, WEI Kai. 61-element adaptive optical system for 1.2 m telescope of Yunnan Observatory[J]. Chinese Journal of Quantum Electronics, 2006, 23(3): 0295.