Prototype of solar ground layer adaptive optics at the 1 m New Vacuum Solar Telescope
A prototype of a solar ground-layer adaptive optics （GLAO） system, which consists of a multi-direction corre- lating 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 t...
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| Published in: | Chinese optics letters Vol. 14; no. 10; pp. 6 - 9 |
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| Main Author: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
10-10-2016
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| Online Access: | Get full text |
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| Summary: | A prototype of a solar ground-layer adaptive optics （GLAO） system, which consists of a multi-direction corre- lating 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. |
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| Bibliography: | 31-1890/O3 A prototype of a solar ground-layer adaptive optics （GLAO） system, which consists of a multi-direction corre- lating 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 1,2,3, Lanqiang Zhang 1,2, Lei Zhu 1,2, Hua Bao 1,2 Youming Guo 1,2, Xuejun Rao 1,2, Libo Zhong 1,2, Changhui Rao 1,2（ 1The Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China; 2The Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China; 3University of Chinese Academy of Sciences, Beijing 100049, China） |
| ISSN: | 1671-7694 |
| DOI: | 10.3788/COL201614.100102 |