Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering

doi:10.1364/oe.27.018751

CIOMP OpenIR

	Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering
	C.Wang; Z.Peng; Y.Liu; S.Li; Z.Zhao; W.Chen; Q.Wang; Q.Mu
	2019
发表期刊	Optics Express
ISSN	1094-4087
卷号	27 期号:13 页码:18751-18765
摘要	Sub-aperture coherence (SAC) is a classical phase control method for high-precision beam steering using liquid crystal optical phased arrays (LCOPA). On this basis, radial sub-aperture coherence (RSAC) and symmetrical radial sub-aperture coherence (SRSAC) were proposed, which guarantee the stability of steering angles when the beam aperture and incident position fluctuate. In this article, the pre-existing one-dimensional SRSAC was firstly extended to a more universal 2D phase generation algorithm. Meanwhile, for the intractable problem of local precision defects caused by the basic two-dimensional variable period grating (2D-VPG) algorithm, we tracked their locations accurately and designed a targeted elimination method carefully. So these remarkable error peaks could be thoroughly removed by using 2D-SRSAC optimized by the local precision defect elimination method. Since then, all the excellent performance of 1D-SRSAC can be perfectly transplanted to 2D, which makes the non-mechanical beam steering technology using LCOPA more mature and competitive in the applications required ultra-high precision. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
关键词	liquid-crystal,Optics
DOI	10.1364/oe.27.018751
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63026
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	C.Wang,Z.Peng,Y.Liu,et al. Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering[J]. Optics Express,2019,27(13):18751-18765.
APA	C.Wang.,Z.Peng.,Y.Liu.,S.Li.,Z.Zhao.,...&Q.Mu.(2019).Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering.Optics Express,27(13),18751-18765.
MLA	C.Wang,et al."Two-dimensional symmetrical radial sub-aperture coherence and the local precision defect elimination method for high-precision beam steering".Optics Express 27.13(2019):18751-18765.

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