| 题名: | Testing the pyramid wavefront sensor without modulation used in the closed-loop adaptive optics system |
| 作者: | 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
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| 出版日期: | 2012
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| 会议名称: | Proceedings of SPIE: Adaptive Optics Systems III
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| 会议日期: | 2012
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| DOI: | 10.1117/12.925777
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| 通讯作者: | Wang, S. (wsq_ioe@126.com)
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| 中文摘要: | 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. |
| 英文摘要: | 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. |
| 收录类别: | Ei
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| 语种: | 英语
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| 卷号: | 8447
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| ISSN号: | 0277786X
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| 文章类型: | 会议论文
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| 页码: | 84476K
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| Citation statistics: |
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| 内容类型: | 会议论文
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| URI标识: | http://ir.ioe.ac.cn/handle/181551/7792
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| Appears in Collections: | 自适应光学技术研究室（八室）_会议论文
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作者单位: | 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
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| Recommended Citation: | |
Wang, Shengqian,Rao, Changhui,Zhang, Ang,et al. Testing the pyramid wavefront sensor without modulation used in the closed-loop adaptive optics system[C]. 见:Proceedings of SPIE: Adaptive Optics Systems III. 2012.
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