Radial sub-aperture coherence method to achieve beam steering with high precision and stability

doi:10.1364/oe.27.006331

CORC > 长春光学精密机械与物理研究所 > 中国科学院长春光学精密机械与物理研究所

	Radial sub-aperture coherence method to achieve beam steering with high precision and stability
	C.Wang; Z.Peng; Y.Liu; S.Li; Z.Zhao; W.Chan; Q.Wang; Q.Mu
刊名	Optics Express
	2019
卷号	27 期号:5 页码:6331-6347
关键词	nematic liquid-crystal,optical phased-array,Optics
ISSN号	1094-4087
DOI	10.1364/oe.27.006331
英文摘要	Sub-aperture coherence (SAC) algorithm, which is based on the classical phase modulation method called variable period grating (VPG), was usually used to control liquid crystal optical phased arrays (LCOPA) to achieve agile beam steering with high precision. However, the beam steering angle of SAC is severely affected by the beam aperture, which limits the generality of the algorithm distinctly. In this article, two kinds of new phase modulation method have been proposed to solve this problem, which were named as radial sub-aperture coherence (RSAC) and symmetrical radial sub-aperture coherence (SRSAC). By using RSAC, the holistic drift of steering angle, which is caused by the variation of beam aperture, can be effectively avoided. In addition, a series of equidistant steering points with ultra-high precision can be obtained. Upon this basis, SRSAC greatly enhances the steering angle's stability in the presence of system alignment error and relative vibration. Thus, the practicability of LCOPA for beam steering can be improved effectively. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
语种	英语
内容类型	期刊论文
源URL	[http://ir.ciomp.ac.cn/handle/181722/63027]
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. Radial sub-aperture coherence method to achieve beam steering with high precision and stability[J]. Optics Express,2019,27(5):6331-6347.
APA	C.Wang.,Z.Peng.,Y.Liu.,S.Li.,Z.Zhao.,...&Q.Mu.(2019).Radial sub-aperture coherence method to achieve beam steering with high precision and stability.Optics Express,27(5),6331-6347.
MLA	C.Wang,et al."Radial sub-aperture coherence method to achieve beam steering with high precision and stability".Optics Express 27.5(2019):6331-6347.