13 September 2012 A sodium guide star adaptive optics system for the 1.8 meter telescope
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We are developing a sodium guide star adaptive optics system for the 1.8 meter telescope, which consists of three main parts: (i) 20W microsecond pulsed laser system, (ii) Φ200mm laser launch telescope and (iii) 37-elements adaptive optics system. All of these three parts are mounted on the 1.8 meter telescope which is located in Gaomeigu site of Yunnan Astronomical Observatory, Chinese Academy of Sciences. The pulsed laser system and the launch telescope are rotated with the azimuthal base of the telescope. A miniaturized 37-elements low-order adaptive optics system including a 37-elelment deformable mirror and a 6x6 array Hartmann-Shack wavefront sensor is mounted at the Cassegrain focus taking account of the pulsed laser mode. A separate tip-tilt correction loop is also integrated into the system. This paper describes the details of this system, the simulation result and the test result in the lab. After the indoor test, the whole system will be shipped to 1.8 meter telescope. The latest commissioning status and results is presented also in this paper.
© (2012) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Kai Wei, Kai Wei, Changhui Rao, Changhui Rao, Yong Bo, Yong Bo, Cheng Li, Cheng Li, Min Li, Min Li, Xuejun Zhang, Xuejun Zhang, Ang Zhang, Ang Zhang, Chunlin Guan, Chunlin Guan, Luchun Zhou, Luchun Zhou, Shanqiu Chen, Shanqiu Chen, Xian Hao, Xian Hao, Wenli Ma, Wenli Ma, Yudong Zhang, Yudong Zhang, } "A sodium guide star adaptive optics system for the 1.8 meter telescope", Proc. SPIE 8447, Adaptive Optics Systems III, 84474K (13 September 2012); doi: 10.1117/12.925815; https://doi.org/10.1117/12.925815


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