中国物理B ›› 2016, Vol. 25 ›› Issue (9): 94216-094216.doi: 10.1088/1674-1056/25/9/094216

• SPECIAL TOPIC—Physical research in liquid crystal • 上一篇    下一篇

Configuration optimization of laser guide stars and wavefront correctors for multi-conjugation adaptive optics

Li Xuan(宣丽), Bin He(何斌), Li-Fa Hu(胡立发), Da-Yu Li(李大禹), Huan-Yu Xu(徐焕宇), Xing-Yun Zhang(张杏云), Shao-Xin Wang(王少鑫), Yu-Kun Wang(王玉坤), Cheng-Liang Yang(杨程亮), Zhao-Liang Cao(曹召良), Quan-Quan Mu(穆全全), Xing-Hai Lu(鲁兴海)   

  1. 1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2016-05-18 出版日期:2016-09-05 发布日期:2016-09-05
  • 通讯作者: Li-Fa Hu E-mail:hulifa@ciomp.ac.cn
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11174274, 11174279, 61205021, 11204299, 61475152, and 61405194) and the State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences.

Configuration optimization of laser guide stars and wavefront correctors for multi-conjugation adaptive optics

Li Xuan(宣丽)1, Bin He(何斌)1,2, Li-Fa Hu(胡立发)1, Da-Yu Li(李大禹)1, Huan-Yu Xu(徐焕宇)1, Xing-Yun Zhang(张杏云)1, Shao-Xin Wang(王少鑫)1, Yu-Kun Wang(王玉坤)1, Cheng-Liang Yang(杨程亮)1, Zhao-Liang Cao(曹召良)1, Quan-Quan Mu(穆全全)1, Xing-Hai Lu(鲁兴海)1   

  1. 1. State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China;
    2. University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2016-05-18 Online:2016-09-05 Published:2016-09-05
  • Contact: Li-Fa Hu E-mail:hulifa@ciomp.ac.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos. 11174274, 11174279, 61205021, 11204299, 61475152, and 61405194) and the State Key Laboratory of Applied Optics, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences.

摘要: Multi-conjugation adaptive optics (MCAOs) have been investigated and used in the large aperture optical telescopes for high-resolution imaging with large field of view (FOV). The atmospheric tomographic phase reconstruction and projection of three-dimensional turbulence volume onto wavefront correctors, such as deformable mirrors (DMs) or liquid crystal wavefront correctors (LCWCs), is a very important step in the data processing of an MCAO's controller. In this paper, a method according to the wavefront reconstruction performance of MCAO is presented to evaluate the optimized configuration of multi laser guide stars (LGSs) and the reasonable conjugation heights of LCWCs. Analytical formulations are derived for the different configurations and are used to generate optimized parameters for MCAO. Several examples are given to demonstrate our LGSs configuration optimization method. Compared with traditional methods, our method has minimum wavefront tomographic error, which will be helpful to get higher imaging resolution at large FOV in MCAO.

关键词: laser guide star, liquid crystal wavefront corrector, adaptive optics, phase reconstruction

Abstract: Multi-conjugation adaptive optics (MCAOs) have been investigated and used in the large aperture optical telescopes for high-resolution imaging with large field of view (FOV). The atmospheric tomographic phase reconstruction and projection of three-dimensional turbulence volume onto wavefront correctors, such as deformable mirrors (DMs) or liquid crystal wavefront correctors (LCWCs), is a very important step in the data processing of an MCAO's controller. In this paper, a method according to the wavefront reconstruction performance of MCAO is presented to evaluate the optimized configuration of multi laser guide stars (LGSs) and the reasonable conjugation heights of LCWCs. Analytical formulations are derived for the different configurations and are used to generate optimized parameters for MCAO. Several examples are given to demonstrate our LGSs configuration optimization method. Compared with traditional methods, our method has minimum wavefront tomographic error, which will be helpful to get higher imaging resolution at large FOV in MCAO.

Key words: laser guide star, liquid crystal wavefront corrector, adaptive optics, phase reconstruction

中图分类号:  (Liquid crystals)

  • 42.70.Df
42.30.Wb (Image reconstruction; tomography) 42.68.Bz (Atmospheric turbulence effects) 42.15.Fr (Aberrations)