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Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array
Wang, Xiangru1; Wu, Liang2; He, Xiaoxian1; Huang, Xinning3; Tan, Qinggui4
Department瞬态光学技术国家重点实验室
2018
Source PublicationLIQUID CRYSTALS
ISSN0267-8292
Volume45Issue:10Pages:1477-1486
Contribution Rank3
Abstract

Focusing on the coherent optics of phased array, a dynamic theoretical model is built to analyse the process of laser beam steering using the device of liquid crystal optical phased array. Based on the dynamics of electrical field induced liquid crystal molecule rotation and the mechanism of phased control non-mechanical steering, switching time is redefined according to two curves representing receiving power on the current direction and targeting direction. Meanwhile, including the far field distribution, power stability and pointing direction, two cases with large steering step and tiny steering step are evaluated. The steering time between two angles is minished to be less than the switch-off decay time. In addition, the instability on the process of beam steering is obvious although the steering step is only half of beam width. To overcome this instability, tinier steering step is suggested although it is also limited by the driving algorithm and driving circuits.

KeywordNon-mechanical Beam Steering Optical Phased Array Liquid Crystal
Subject AreaChemistry, Multidisciplinary ; Crystallography ; Materials Science, Multidisciplinary
DOI10.1080/02678292.2018.1448474
Indexed BySCI
Language英语
WOS Research AreaChemistry ; Crystallography ; Materials Science
WOS IDWOS:000439980100008
PublisherTAYLOR & FRANCIS LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30538
Collection瞬态光学技术国家重点实验室
Corresponding AuthorWang, Xiangru
Affiliation1.Univ Elect Sci & Technol China, Sch Optoelect Informat, Chengdu 610054, Peoples R China
2.Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu, Sichuan, Peoples R China
3.Chinese Acad Sci, Xian Inst Opt & Precis Mech, Beijing, Peoples R China
4.Acad Space Informat Syst, Xian, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Wang, Xiangru,Wu, Liang,He, Xiaoxian,et al. Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array[J]. LIQUID CRYSTALS,2018,45(10):1477-1486.
APA Wang, Xiangru,Wu, Liang,He, Xiaoxian,Huang, Xinning,&Tan, Qinggui.(2018).Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array.LIQUID CRYSTALS,45(10),1477-1486.
MLA Wang, Xiangru,et al."Theoretical analysis on power stability and switch time of the non-mechanical beam steering using liquid crystal optical phased array".LIQUID CRYSTALS 45.10(2018):1477-1486.
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