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Theory and experiment of phasing detection by use of two wavelengths
Li, Bin1,2,3; Yu, Wen-Hao1,2,3; Tang, Jin-Long1,3; Xian, Hao1,3
2017
Source PublicationApplied Optics
ISSN1559-128X
Volume56Issue:1Pages:1-7
AbstractWavefront sensing in monochromatic light has 2π ambiguity. To resolve this ambiguity, the wavefront sensing is performed in two wavelengths. A new algorithm is proposed to find the correct phase, and the algorithm is verified by simulation. Using the algorithm, the capture range of a wavefront sensor can be extended from on the order of λ/2 in a segmented mirror piston error to several waves. Lastly, a co-phasing experiment system of the segmented mirror is built to verify the algorithm. In the experiment, one wavelength is 0.65 μm, and the other is 0.636 μm. After the co-phasing fine tuning of the segmented mirror, the piston error of the segmented mirror is better than λ/20. © 2016 Optical Society of America.
KeywordPistons - Wavefronts
Indexed BySCI ; Ei
Language英语
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/8772
Collection自适应光学技术研究室(八室)
Affiliation1.Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu; Sichuan; 610209, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China;
3.Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu; Sichuan; 610209, China
Recommended Citation
GB/T 7714
Li, Bin,Yu, Wen-Hao,Tang, Jin-Long,et al. Theory and experiment of phasing detection by use of two wavelengths[J]. Applied Optics,2017,56(1):1-7.
APA Li, Bin,Yu, Wen-Hao,Tang, Jin-Long,&Xian, Hao.(2017).Theory and experiment of phasing detection by use of two wavelengths.Applied Optics,56(1),1-7.
MLA Li, Bin,et al."Theory and experiment of phasing detection by use of two wavelengths".Applied Optics 56.1(2017):1-7.
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