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Numerical analysis of the convergence speed of the SPGD algorithm with two different perturbation methods in coherent beam combination using active segmented mirror
Tan, Yi1,2,3; Li, Xinyang1,2; Luo, Wen1,2,3; Geng, Chao1,2
Volume9255
Pages92550P
2015
Language英语
ISSN0277-786X
DOI10.1117/12.2065452
Indexed BySCI ; Ei
Subtype会议论文
AbstractAn introduction was given to the active segmented mirror(ASM) used in coherent beam combination firstly. Based on the actuator distribution of ASM, the computational formula between the perturbation voltage of each actuator and the perturbation of piston or tip/tilt was acquired. Then the numerical analysis of correction process with two different perturbation ways in SPGD algorithm was carried on. By comparing the two correction processes, it was found that the convergence speed of the second method is 25 times as fast as the first one when there only existed piston error between the two beamlets, while the convergence speed was almost the same when there only existed tip/tilt error, and the convergence speed is 5 times when there existed both piston and tip/tilt error. © 2015 SPIE.; An introduction was given to the active segmented mirror(ASM) used in coherent beam combination firstly. Based on the actuator distribution of ASM, the computational formula between the perturbation voltage of each actuator and the perturbation of piston or tip/tilt was acquired. Then the numerical analysis of correction process with two different perturbation ways in SPGD algorithm was carried on. By comparing the two correction processes, it was found that the convergence speed of the second method is 25 times as fast as the first one when there only existed piston error between the two beamlets, while the convergence speed was almost the same when there only existed tip/tilt error, and the convergence speed is 5 times when there existed both piston and tip/tilt error. © 2015 SPIE.
Conference NameProceedings of SPIE: 20th International Symposium on High Power Systems and Applications 2014, HPLS and A 2014
Conference Date2015
Citation statistics
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7839
Collection自适应光学技术研究室(八室)
Corresponding AuthorLi, Xinyang
Affiliation1. Key Laboratory on Adaptive Optics, Chinese Academy of Sciences, Chengdu, China
2. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
3. University of Chinese Academy of Sciences, Beijing, China
Recommended Citation
GB/T 7714
Tan, Yi,Li, Xinyang,Luo, Wen,et al. Numerical analysis of the convergence speed of the SPGD algorithm with two different perturbation methods in coherent beam combination using active segmented mirror[C],2015:92550P.
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