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Proceedings Paper

Preliminary result of the solar multi-conjugate adaptive optics for 1m new vacuum solar telescope
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Paper Abstract

Solar observation with high resolution in large field of view (FoV) is required for some solar active regions with the typical sizes of 1’ to 3’. Conventional adaptive optics (AO) could not satisfy this demand because of the atmospheric anisoplanatism. Through compensating the turbulence in different heights, multi-conjugate adaptive optics (MCAO) has been proved to obtain a larger corrected FoV. A MCAO experimental system including a conventional 151-element AO system and a 37-element MCAO part is being developed. The MCAO part contains a 37-element deformable mirror conjugated into the 2km to 5km height and a multi-direction Shack-Hartmann wavefront sensor (MD-SHWFS) with 7×7 subaperture array and 60 arcsec FoV, the frame rate of the MD-SHWFS is up to 840Hz. Three-dimensional (3-D) wavefront sensing utilizing atmospheric tomography had been validated by solar observation. Based on these results, a ground layer adaptive optics (GLAO) experimental system including a 151-element deformable mirror and the MD-SHWFS has been built at the 1m New Vacuum Solar Telescope (NVST). In this paper, the MCAO experimental system will be introduced. The preliminary experimental results of three-dimensional wavefront sensing and GLAO on the NVST of Full-shine Lake Solar Observatory are presented.

Paper Details

Date Published: 27 July 2016
PDF: 7 pages
Proc. SPIE 9909, Adaptive Optics Systems V, 99092C (27 July 2016); doi: 10.1117/12.2231955
Show Author Affiliations
Lanqiang Zhang, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Lin Kong, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Univ. of Chinese Academy of Sciences (China)
Hua Bao, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Lei Zhu, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Xuejun Rao, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)
Changhui Rao, Key Lab. of Adaptive Optics (China)
Institute of Optics and Electronics (China)


Published in SPIE Proceedings Vol. 9909:
Adaptive Optics Systems V
Enrico Marchetti; Laird M. Close; Jean-Pierre Véran, Editor(s)

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