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题名:
Piston and tilt cophasing of segmented laser array using Shack-Hartmann sensor
作者: Wang, Xiaohua1,2; Fu, Qiang1,2; Shen, Feng1; Rao, Changhui1
刊名: Optics Express
出版日期: 2012
卷号: 20, 期号:4, 页码:4663-4674
学科分类: Random errors
DOI: 10.1364/OE.20.004663
通讯作者: Wang, X. (wxhua009@163.com)
文章类型: 期刊论文
中文摘要: We describe a concept of detecting the piston and tilt errors with a Shack-Hartmann sensor and correcting them simultaneously via a segmented deformable mirror (DM) in a two-dimensional laser array. The concept in coherent beam combination (CBC) is demonstrated by both simulation and experiment. The simulative results show only two iterations are enough to correct the random initial phase errors in the steady condition. The experimental results confirm that this method works effectively in a dynamic condition. The study represents that the Shack-Hartmann sensor can extract any piston error in -π ∼π, which means the concept is an arbitrary phasing technique for a laser array. © 2012 Optical Society of America.
英文摘要: We describe a concept of detecting the piston and tilt errors with a Shack-Hartmann sensor and correcting them simultaneously via a segmented deformable mirror (DM) in a two-dimensional laser array. The concept in coherent beam combination (CBC) is demonstrated by both simulation and experiment. The simulative results show only two iterations are enough to correct the random initial phase errors in the steady condition. The experimental results confirm that this method works effectively in a dynamic condition. The study represents that the Shack-Hartmann sensor can extract any piston error in -π ∼π, which means the concept is an arbitrary phasing technique for a laser array. © 2012 Optical Society of America.
收录类别: Ei
语种: 英语
WOS记录号: WOS:000301041900129
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ioe.ac.cn/handle/181551/6317
Appears in Collections:自适应光学技术研究室(八室)_期刊论文

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作者单位: 1. Laboratory on Adaptive Optics, Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Recommended Citation:
Wang, Xiaohua,Fu, Qiang,Shen, Feng,et al. Piston and tilt cophasing of segmented laser array using Shack-Hartmann sensor[J]. Optics Express,2012,20(4):4663-4674.
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