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Testing the pyramid wavefront sensor without modulation used in the closed-loop adaptive optics system
Wang, Shengqian1,2; Rao, Changhui1,2; Zhang, Ang1,2; Zhang, Xuejun1,2; Wei, Kai1,2; Tian, Yu1,2; Liao, Zhou1,2; Zhang, Cheng1,2; Xian, Hao1,2; Zhang, Xiaojun1,2; Wei, Ling1,2; Wang, S. (wsq_ioe@126.com)
Volume8447
Pages84476K
2012
Language英语
ISSN0277786X
DOI10.1117/12.925777
Indexed ByEi
Subtype会议论文
AbstractThe pyramid wavefront sensor is an innovative device with the special characteristics of variable gain and adjustable sampling in real time to enable an optimum match of the system performance, which make it an attractive option for next generation adaptive optics system compared with the Shack-Hartmann. At present most of the pyramid wavefront sensor are used with modulation based on oscillating optical component in order to give a linear measurement of the local tilt, but the PWFS without modulation would greatly simplify the optical and mechanical design of the adaptive optics system and also give highest sensitivity as expected to be achieved. In this paper we describe the optical setup of our adaptive optics system with nonmudulated pyramid wavefront sensor. In this system, the pyramid wavefront sensor with 8x8 sub-apertures in the pupil diameter has been designed, and the deformable mirror with 61 actuators based on the liquid-crystal spatial light modulator is used to introduce aberrations into the system, as well as to correct them afterwards. The closed-loop correction results of single order Zernike aberrations and the Kolmogorov turbulence phase screen are given to show that the PWFS without modulation can work as expected for closed-loop system. © 2012 SPIE.; The pyramid wavefront sensor is an innovative device with the special characteristics of variable gain and adjustable sampling in real time to enable an optimum match of the system performance, which make it an attractive option for next generation adaptive optics system compared with the Shack-Hartmann. At present most of the pyramid wavefront sensor are used with modulation based on oscillating optical component in order to give a linear measurement of the local tilt, but the PWFS without modulation would greatly simplify the optical and mechanical design of the adaptive optics system and also give highest sensitivity as expected to be achieved. In this paper we describe the optical setup of our adaptive optics system with nonmudulated pyramid wavefront sensor. In this system, the pyramid wavefront sensor with 8x8 sub-apertures in the pupil diameter has been designed, and the deformable mirror with 61 actuators based on the liquid-crystal spatial light modulator is used to introduce aberrations into the system, as well as to correct them afterwards. The closed-loop correction results of single order Zernike aberrations and the Kolmogorov turbulence phase screen are given to show that the PWFS without modulation can work as expected for closed-loop system. © 2012 SPIE.
Conference NameProceedings of SPIE: Adaptive Optics Systems III
Conference Date2012
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7792
Collection自适应光学技术研究室(八室)
Corresponding AuthorWang, S. (wsq_ioe@126.com)
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu 610209, China
Recommended Citation
GB/T 7714
Wang, Shengqian,Rao, Changhui,Zhang, Ang,et al. Testing the pyramid wavefront sensor without modulation used in the closed-loop adaptive optics system[C],2012:84476K.
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