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题名:
Influence and simulated correction of tip/tilt phase error on fiber laser coherent beam combination
作者: Geng Chao1,2; Li Xin-Yang1; Zhang Xiao-Jun1; Rao Chang-Hui1
刊名: ACTA PHYSICA SINICA
出版日期: 2011-11-01
卷号: 60, 期号:11
关键词: fiber laser ; coherent beam combination ; tip/tilt phase error ; dynamic analysis
文章类型: Article
英文摘要: Near-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.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: ARRAYS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000298442100046
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/3438
Appears in Collections:光电技术研究所被WoS收录文章_期刊论文

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作者单位: 1.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:
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).
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