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Piston and tilt cophasing of segmented laser array using Shack-Hartmann sensor
Wang, Xiaohua1,2; Fu, Qiang1,2; Shen, Feng1; Rao, Changhui1; Wang, X. (wxhua009@163.com)
Source PublicationOptics Express
Volume20Issue:4Pages:4663-4674
2012
Language英语
DOI10.1364/OE.20.004663
Indexed ByEi
WOS IDWOS:000301041900129
Subtype期刊论文
AbstractWe 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.; 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.
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Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/6317
Collection自适应光学技术研究室(八室)
Corresponding AuthorWang, X. (wxhua009@163.com)
Affiliation1. 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
GB/T 7714
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.
APA Wang, Xiaohua,Fu, Qiang,Shen, Feng,Rao, Changhui,&Wang, X. .(2012).Piston and tilt cophasing of segmented laser array using Shack-Hartmann sensor.Optics Express,20(4),4663-4674.
MLA Wang, Xiaohua,et al."Piston and tilt cophasing of segmented laser array using Shack-Hartmann sensor".Optics Express 20.4(2012):4663-4674.
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