| 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)
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| Volume | 8447 |
| Pages | 84476K |
| 2012 | |
| Language | 英语 |
| ISSN | 0277786X |
| DOI | 10.1117/12.925777 |
| Indexed By | Ei |
| Subtype | 会议论文 |
| Abstract | 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.; 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 Name | Proceedings of SPIE: Adaptive Optics Systems III |
| Conference Date | 2012 |
| Citation statistics | |
| Document Type | 会议论文 |
| Identifier | http://ir.ioe.ac.cn/handle/181551/7792 |
| Collection | 自适应光学技术研究室（八室） |
| Corresponding Author | Wang, S. (wsq_ioe@126.com) |
| Affiliation | 1. 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. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 2012-2153.pdf（410KB） | 会议论文 | 开放获取 | CC BY-NC-SA | Application Full Text | ||
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