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Adaptive conversion of input beam with unsymmetrical intensity distribution to near diffraction-limited flattop beam based on dual phase-only liquid-crystal spatial light modulators
Ma, Haotong1,2,4; Zhang, Guowen3; Xie, Zongliang1,2; Qi, Bo1,2; Ren, Ge1,2; Wang, Sanhong5
2016
发表期刊Proceedings of SPIE: Technologies for Optical Countermeasures XIII
ISSN0277-786X
卷号9989页码:99890S
文章类型C
摘要We propose and demonstrate the adaptive conversion of input beam with unsymmetrical intensity distribution into a near-diffraction-limited flattop beam with desired parameters in the near field based on a combination of dual phase-only liquid crystal spatial light modulators (LC-SLMs) and the stochastic parallel gradient descent (SPGD) algorithm. One phase-only LC-SLM redistributes the intensity of the input beam to the desired distributions at the other phase-only LCSLM plane, and the other phase-only LC-SLM compensates the wavefront of the output beam. The SPGD algorithm adaptively optimizes the phase distributions of dual phase-only LC-SLMs to reduce the variance between the actual beam shape and the target beam shape. The experimental results on a prefabricated unsymmetrical input beam show that the technique is capable of adaptively creating near-diffraction-limited flattop beams with desired parameters. © 2016 SPIE.
关键词Adaptive Optics Diffraction Gradient Methods Laser Beam Welding Light Modulation Liquid Crystals Liquids Spatial Distribution Steel Beams And Girders Stochastic Systems
DOI10.1117/12.2242023
收录类别SCI ; Ei
语种英语
项目资助者The Society of Photo-Optical Instrumentation Engineers (SPIE)
WOS记录号WOS:000391294400018
引用统计
文献类型期刊论文
条目标识符http://ir.ioe.ac.cn/handle/181551/8557
专题光电工程总体研究室(一室)
作者单位1. Institute of Optics and Electronics, Chinese Academy of Scieces, Chengdu, Sichuan
2.610209, China
3. Key Laboratory of Optical Engineering, Chinese Academy of Sciences, Chengdu, Sichuan
4.610209, China
5. National Laboratory on High Power Laser and Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai
6.201800, China
7. College of Opto-electronic Science and Engineering, National University of Defense Technology, Changsha, Hunan
8.410073, China
9. Taiyuan satellite launch center, Taiyuan, Shanxi
10.036301, China
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GB/T 7714
Ma, Haotong,Zhang, Guowen,Xie, Zongliang,et al. Adaptive conversion of input beam with unsymmetrical intensity distribution to near diffraction-limited flattop beam based on dual phase-only liquid-crystal spatial light modulators[J]. Proceedings of SPIE: Technologies for Optical Countermeasures XIII,2016,9989:99890S.
APA Ma, Haotong,Zhang, Guowen,Xie, Zongliang,Qi, Bo,Ren, Ge,&Wang, Sanhong.(2016).Adaptive conversion of input beam with unsymmetrical intensity distribution to near diffraction-limited flattop beam based on dual phase-only liquid-crystal spatial light modulators.Proceedings of SPIE: Technologies for Optical Countermeasures XIII,9989,99890S.
MLA Ma, Haotong,et al."Adaptive conversion of input beam with unsymmetrical intensity distribution to near diffraction-limited flattop beam based on dual phase-only liquid-crystal spatial light modulators".Proceedings of SPIE: Technologies for Optical Countermeasures XIII 9989(2016):99890S.
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