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题名:
Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition
作者: Zheng Y; Wang XH; Deng L; Shen F; Li XY
刊名: OPTICS COMMUNICATIONS
出版日期: 2011
卷号: 284, 期号:20, 页码:4975-4982
通讯作者: Zheng Y (Zheng Yi)
文章类型: 期刊论文
中文摘要: 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.
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.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6207
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

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作者单位: 中国科学院光电技术研究所

Recommended Citation:
Zheng Y,Wang XH,Deng L,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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