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Influence and simulated correction of tip/tilt phase error on fiber laser coherent beam combination
Geng Chao1,2; Li Xin-Yang1; Zhang Xiao-Jun1; Rao Chang-Hui1
Source PublicationACTA PHYSICA SINICA
Volume60Issue:11
2011-11-01
Language英语
Indexed BySCI
WOS IDWOS:000298442100046
SubtypeArticle
AbstractNear-field models of coherent beam combination (CBC) with different beam channels and fill factors are employed, and the influences of tip/tilt phase errors on CBC are studied. The key device for tilt-error correction, named adaptive fiber optics collimator(AFOC), is introduced. A MOPA-configuration fiber laser CBC system compensating both piston and tip/tilt phase errors is designed. Then, the dynamic courses of tilt-error correction using stochastic parallel gradient descent (SPGD) algorithm in a seven-channel system are simulated, and the effects of CBC at different tilt-error amplitudes and frequencies are investigated. Experimental results show that the tilt-error should be corrected to improve CBC effects, and algorithm's control ability drops off when tilt-error amplitude and frequency increase. The results in this paper present a reference for multi-channel high power fiber laser CBC systems in real atmospheric environments.
KeywordFiber Laser Coherent Beam Combination Tip/tilt Phase Error Dynamic Analysis
WOS KeywordARRAYS
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/3438
Collection光电技术研究所被WoS收录文章
Affiliation1.Chinese Acad Sci, Key Lab Adapt Opt, Chengdu 610209, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Geng Chao,Li Xin-Yang,Zhang Xiao-Jun,et al. Influence and simulated correction of tip/tilt phase error on fiber laser coherent beam combination[J]. ACTA PHYSICA SINICA,2011,60(11).
APA Geng Chao,Li Xin-Yang,Zhang Xiao-Jun,&Rao Chang-Hui.(2011).Influence and simulated correction of tip/tilt phase error on fiber laser coherent beam combination.ACTA PHYSICA SINICA,60(11).
MLA Geng Chao,et al."Influence and simulated correction of tip/tilt phase error on fiber laser coherent beam combination".ACTA PHYSICA SINICA 60.11(2011).
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