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题名:
Experimental validation of closed-loop adaptive optics based on a self-referencing interferometer wavefront sensor and a liquid-crystal spatial light modulator
作者: Bai, Fuzhong1,2,3,4; Rao, Changhui1,2
刊名: OPTICS COMMUNICATIONS
出版日期: 2010-07-15
卷号: 283, 期号:14, 页码:2782-2786
关键词: Adaptive optics ; Wavefront sensing ; Aberration compensation ; Spatial light modulator
文章类型: Article
英文摘要: A closed-loop adaptive optics system based on a self-referencing interferometer wavefront sensor (SRI WFS) using phase-shifting point-diffraction technique and an electrically addressed phase-only liquid-crystal spatial light modulator (LC SLM) is built and validated experimentally The wavefront aberration of incoming beam is directly measured by analyzing four frames phase-shifted interferograms captured by a single CCD camera in two camera shots, and then by loading the conjugate function onto the SLM the wavefront aberration is corrected. The proposed scheme does not rely on any complicated control algorithm or wavefront-reconstruction algorithm and can achieve high-resolution and high-accuracy correction. Closed-loop correction results of single order Zernike aberrations and a Kolmogorov turbulence phase screen show that considerable improvements in the Strehl ratio (of greater than 0.94) is achieved (C) 2010 Elsevier B.V. All rights reserved
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Optics
研究领域[WOS]: Optics
关键词[WOS]: POINT-DIFFRACTION INTERFEROMETER ; PHASE MODULATOR ; SYSTEM ; PERFORMANCE
收录类别: SCI
语种: 英语
WOS记录号: WOS:000279135700003
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3368
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.Chinese Acad Sci, Lab Adapt Opt, Inst Opt & Elect, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 10049, Peoples R China
4.Inner Mongolia Univ Technol, Sch Mech Engn, Hohhot 010051, Peoples R China

Recommended Citation:
Bai, Fuzhong,Rao, Changhui. Experimental validation of closed-loop adaptive optics based on a self-referencing interferometer wavefront sensor and a liquid-crystal spatial light modulator[J]. OPTICS COMMUNICATIONS,2010,283(14):2782-2786.
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