Chinese Optics Letters, 2016, 14 (10): 100102, Published Online: Aug. 2, 2018   

Prototype of solar ground layer adaptive optics at the 1  m New Vacuum Solar Telescope

Author Affiliations
1 The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China
2 The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
3 University of Chinese Academy of Sciences, Beijing 100049, China
Abstract
A prototype of a solar ground-layer adaptive optics (GLAO) system, which consists of a multi-direction correlating Shack–Hartmann wavefront sensor with 30 effective subapertures and about a 1 arcmin field of view (FoV) in each subaperture, a deformable mirror with 151 actuators conjugated to the telescope entrance pupil, and a custom-built real-time controller based on field-programmable gate array and multi-core digital signal processor (DSP), is implemented at the 1 m New Vacuum Solar Telescope at Fuxian Solar Observatory and saw its first light on January 12th, 2016. The on-sky observational results show that the solar image is apparently improved in the whole FoV over 1 arcmin with the GLAO correction.

Lin Kong, Lanqiang Zhang, Lei Zhu, Hua Bao, Youming Guo, Xuejun Rao, Libo Zhong, Changhui Rao. Prototype of solar ground layer adaptive optics at the 1  m New Vacuum Solar Telescope[J]. Chinese Optics Letters, 2016, 14(10): 100102.

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