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General condition of unidirectional mode conversion in periodic waveguide
Zhang, Lingxuan1,2; Wang, Guoxi1,2; Li, Siqi1,2; Ge, Zhiqiang1,2; Wang, Weiqiang1,2; Sun, Qibing1; Wang, Leiran1,2; Gong, Yongkang3; Zhao, Wei1,2; Zhang, Wenfu1,2
Department瞬态光学技术国家重点实验室
2018-11
Source PublicationJOURNAL OF OPTICS
ISSN2040-8978;2040-8986
Volume20Issue:12
Contribution Rank1
Abstract

We present a general analytical theory for unidirectional mode conversion in a periodic waveguide at the sub-wavelength scale. According to this theory, two methods are proposed to achieve the unidirectional mode conversion. One method is to make the spectrum of the permittivity variation function asymmetrically, and the other is to employ the tensor permittivity and realize the non-reciprocal overlap of the coupled modes. Based on these two methods, five unidirectional mode converters are designed and demonstrated. The presented theory provides guidance for design of unidirectional devices in eliminating integrated backscattering, optical circulation and complex communication topology construction.

KeywordUnidirectional Propagating Mode Conversion Periodic
DOI10.1088/2040-8986/aaec24
Indexed BySCI ; EI
Language英语
WOS IDWOS:000450650100001
PublisherIOP PUBLISHING LTD
EI Accession Number20185106267091
Citation statistics
Document Type期刊论文
Identifierhttp://ir.opt.ac.cn/handle/181661/30735
Collection瞬态光学研究室
Corresponding AuthorZhang, Wenfu
Affiliation1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shaanxi, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Cardiff Univ, Cardiff CF10 3AT, S Glam, Wales
Recommended Citation
GB/T 7714
Zhang, Lingxuan,Wang, Guoxi,Li, Siqi,et al. General condition of unidirectional mode conversion in periodic waveguide[J]. JOURNAL OF OPTICS,2018,20(12).
APA Zhang, Lingxuan.,Wang, Guoxi.,Li, Siqi.,Ge, Zhiqiang.,Wang, Weiqiang.,...&Zhang, Wenfu.(2018).General condition of unidirectional mode conversion in periodic waveguide.JOURNAL OF OPTICS,20(12).
MLA Zhang, Lingxuan,et al."General condition of unidirectional mode conversion in periodic waveguide".JOURNAL OF OPTICS 20.12(2018).
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