Chinese Journal of Quantum Electronics, Volume. 23, Issue 3, 295(2006)
61-element adaptive optical system for 1.2 m telescope of Yunnan Observatory
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.
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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): 295
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Received: Nov. 3, 2005
Accepted: --
Published Online: Jun. 7, 2010
The Author Email: Chang-hui RAO (chrao@ioe.ac.cn)
CSTR:32186.14.