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How to obtain a shortest mode converter based on periodic waveguide with limited index contrast?
Zhang, Lingxuan1,2,3; Zhang, Wenfu1,2,3; Wang, Guoxi1,2,3; Hu, Yaowei1; Ge, Zhiqiang1,2,3; Wang, Leiran1,2,3; Sun, Qibing1,2; Wang, Weiqiang1,2,3; Gong, Yongkang2,4; Zhao, Wei1,2,3; Zhang, Wenfu (wfuzhang@opt.ac.cn)
作者部门瞬态光学技术国家重点实验室
2017-05-01
发表期刊APPLIED PHYSICS B-LASERS AND OPTICS
ISSN0946-2171
卷号123期号:4
产权排序1
摘要

Mode converter is one of most significant elements in photonic integrated circuits. It relies on increasing index contrast to shorten its length. However, index contrast is limited for technology. In addition, an overlarge index contrast leads to some disadvantages, such as large scattering loss, reflection loss, and small tolerance for manufacturing. Thus, an approximate scheme to design a mode converter is manipulating the transverse distribution of index to achieve the minimum length when the index contrast is given. We have analytically deduced the theoretical maximum coupled efficiency in periodic waveguide, which determines the minimum coupling length of mode converter. What is more, we have demonstrated how to construct a distribution function of indices in a cross section of waveguide to achieve the minimum length and a case is also given to illustrate the process. Proofs, based on both mathematic derivation and numerical simulation, have been exhibited in the paper.

文章类型Article
WOS标题词Science & Technology ; Physical Sciences
DOI10.1007/s00340-017-6718-7
收录类别SCI ; EI
关键词[WOS]TAPERED DIRECTIONAL COUPLER ; PHOTONIC CRYSTALS ; ON-CHIP
语种英语
WOS研究方向Optics ; Physics
项目资助者National Natural Science Foundation of China (NSFC)(61475188 ; Strategic Priority Research Program of the Chinese Academy of Sciences(XDB 24030600) ; NSFC(61405243 ; New Star Team of Xi'an University of Post & Telecommunications ; 11404388) ; 61675231 ; 61635013)
WOS类目Optics ; Physics, Applied
WOS记录号WOS:000402982600002
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/28811
专题瞬态光学研究室
通讯作者Zhang, Wenfu (wfuzhang@opt.ac.cn)
作者单位1.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian 710119, Peoples R China
2.Chinese Acad Sci, XIOPM, China UK Joint Res Ctr Micro Nano Photon, Xian 710119, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Univ South Wales, Fac Adv Technol, Pontypridd CF37 1DL, M Glam, Wales
推荐引用方式
GB/T 7714
Zhang, Lingxuan,Zhang, Wenfu,Wang, Guoxi,et al. How to obtain a shortest mode converter based on periodic waveguide with limited index contrast?[J]. APPLIED PHYSICS B-LASERS AND OPTICS,2017,123(4).
APA Zhang, Lingxuan.,Zhang, Wenfu.,Wang, Guoxi.,Hu, Yaowei.,Ge, Zhiqiang.,...&Zhang, Wenfu .(2017).How to obtain a shortest mode converter based on periodic waveguide with limited index contrast?.APPLIED PHYSICS B-LASERS AND OPTICS,123(4).
MLA Zhang, Lingxuan,et al."How to obtain a shortest mode converter based on periodic waveguide with limited index contrast?".APPLIED PHYSICS B-LASERS AND OPTICS 123.4(2017).
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