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题名:
Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition
作者: Zheng, Yi1,2; Wang, Xiaohua1,2; Deng, Li1,2; Shen, Feng1; Li, Xinyang1
刊名: OPTICS COMMUNICATIONS
出版日期: 2011-09-15
卷号: 284, 期号:20, 页码:4975-4982
关键词: Coherent beam combination ; Laser array ; Adaptive optics ; SPGD
文章类型: Article
英文摘要: We describe a concept of using segmented adaptive optics (AO) to correct the higher-order wavefront aberrations (HOWAs) in an atmospheric turbulence condition. The effects of piston and tip-tilt corrections are analyzed by numerical simulation. An experiment test-bed is built for verification. Seven spatial beamlets are combined into a hexagonal array by use of a pyramid, and an active segmented mirror is used for phase modulation. The AO control is implemented by stochastic parallel gradient descent (SPGD) algorithm. Experimentally, after segmented AO is enabled, the HOWA in warmed air environment has been effectively corrected and the peak intensity of far-field has been enhanced by 5 times. (C) 2011 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]: COHERENT COMBINATION ; HIGH-POWER ; FIBER-ARRAY ; MIRROR ; BEAM ; OPTIMIZATION ; TELESCOPES ; ALGORITHM
收录类别: SCI
语种: 英语
WOS记录号: WOS:000294579200022
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3414
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, Sichuan, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Zheng, Yi,Wang, Xiaohua,Deng, Li,et al. Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition[J]. OPTICS COMMUNICATIONS,2011,284(20):4975-4982.
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