| INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY | |
| Rao, Changhui; Zhu, Lei; Rao, Xuejun; Zhang, Lanqiang; Bao, Hua; Kong, Lin; Guo, Youming; Zhong, Libo; Ma, Xue' An; Li, Mei; Wang, Cheng; Zhang, Xiaojun; Fan, Xinlong; Chen, Donghong; Feng, Zhongyi; Gu, Naiting; Liu, Yangyi | |
| Source Publication | ASTROPHYSICAL JOURNAL
 |
| Volume | 833Issue:2Pages:210 |
| 2016 | |
| Language | 英语 |
| ISSN | 0004-637X |
| DOI | 10.3847/1538-4357/833/2/210 |
| Indexed By | SCI |
| WOS ID | WOS:000391169600085 |
| Subtype | J |
| Abstract | A high-order solar adaptive optics (AO) system including a fine tracking loop and a high-order wavefront correction loop has been installed at the 1 m New Vacuum Solar Telescope of the Fuxian Solar Observatory, in routine operation since 2016. The high-order wavefront correction loop consists of a deformable mirror with 151 actuators, a correlating Shack-Hartmann wavefront sensor with 102 subapertures of which the Absolute Difference Square Algorithm is used to extract the gradients, and a custom-built real-time controller based on a Field-Programmable Gate Array (FPGA) and multi-core Digital Signal Processor (DSP). The frame rate of the wavefront sensor is up to 3500 Hz and this is, to our knowledge, the fastest solar AO system. This AO system can work with a Fried parameter r(0), at the 500 nm wavelength, of larger than 3 cm. The first 65 modes of the Zernike aberrations can be efficiently corrected and the Strehl ratio of the corrected TiO image for the solar pore is superior to 0.75 with the Fried parameter r(0) larger than 10 cm. In this paper, the design of the system is described, and high-resolution solar observational images are presented. Furthermore, the performances of the AO system are evaluated according to the data recorded by the real-time controller. |
| Keyword | Instrumentation: Adaptive Optics Instrumentation: High Angular Resolution Sun: Photosphere Techniques: High Angular Resolution Techniques: Image Processing |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/8422 |
| Collection | 自适应光学技术研究室（八室） |
| Affiliation | 1.[Rao, Changhui 2.Zhu, Lei 3.Rao, Xuejun 4.Zhang, Lanqiang 5.Bao, Hua 6.Kong, Lin 7.Guo, Youming 8.Zhong, Libo 9.Ma, Xue' An 10.Li, Mei 11.Wang, Cheng 12.Zhang, Xiaojun 13.Fan, Xinlong 14.Chen, Donghong 15.Feng, Zhongyi 16.Gu, Naiting 17.Liu, Yangyi] Chinese Acad Sci, Key Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China 18.[Rao, Changhui 19.Zhu, Lei 20.Rao, Xuejun 21.Zhang, Lanqiang 22.Bao, Hua 23.Kong, Lin 24.Guo, Youming 25.Zhong, Libo 26.Ma, Xue' An 27.Li, Mei 28.Wang, Cheng 29.Zhang, Xiaojun 30.Fan, Xinlong 31.Chen, Donghong 32.Feng, Zhongyi 33.Gu, Naiting 34.Liu, Yangyi] Chinese Acad Sci, Inst Opt & Elect, Lab Adapt Opt, POB 350, Chengdu 610209, Sichuan, Peoples R China 35.[Kong, Lin 36.Liu, Yangyi] Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Rao, Changhui,Zhu, Lei,Rao, Xuejun,et al. INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY[J]. ASTROPHYSICAL JOURNAL,2016,833(2):210. |
| APA | Rao, Changhui.,Zhu, Lei.,Rao, Xuejun.,Zhang, Lanqiang.,Bao, Hua.,...&Liu, Yangyi.(2016).INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY.ASTROPHYSICAL JOURNAL,833(2),210. |
| MLA | Rao, Changhui,et al."INSTRUMENT DESCRIPTION AND PERFORMANCE EVALUATION OF A HIGH-ORDER ADAPTIVE OPTICS SYSTEM FOR THE 1 m NEW VACUUM SOLAR TELESCOPE AT FUXIAN SOLAR OBSERVATORY".ASTROPHYSICAL JOURNAL 833.2(2016):210. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2016-2017.pdf（4481KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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