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Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition
Zheng Y; Wang XH; Deng L; Shen F; Li XY; Zheng Y (Zheng Yi)
Source PublicationOPTICS COMMUNICATIONS
Volume284Issue:20Pages:4975-4982
2011
Language英语
Subtype期刊论文
AbstractWe 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.; 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.
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6207
Collection自适应光学技术研究室(八室)
Corresponding AuthorZheng Y (Zheng Yi)
Affiliation中国科学院光电技术研究所
Recommended Citation
GB/T 7714
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.
APA Zheng Y,Wang XH,Deng L,Shen F,Li XY,&Zheng Y .(2011).Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition.OPTICS COMMUNICATIONS,284(20),4975-4982.
MLA Zheng Y,et al."Experimental investigation of segmented adaptive optics for spatial laser array in an atmospheric turbulence condition".OPTICS COMMUNICATIONS 284.20(2011):4975-4982.
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