Low loss and polarization-insensitive coupling length for a terahertz fiber directional coupler with symmetric dual-suspended core structure

doi:10.1016/j.optcom.2020.126497

OPT OpenIR > 信息光子学研究室

	Low loss and polarization-insensitive coupling length for a terahertz fiber directional coupler with symmetric dual-suspended core structure
	Zhu, Yuan-Feng 1,2,3; Huang, Xu 1; Ke, Qiang 1; Liu, Guiqiang 1; Rao, Chun-Fang 1; Kong, Depeng4 ; Mei, Sen 4; Liu, Yunqi 2; Wang, Hua 5
作者部门	信息光子学研究室
	2021-02-01
发表期刊	Optics Communications
ISSN	00304018
卷号	480
产权排序	4
摘要	In this work, a terahertz (THz) fiber directional coupler with a symmetric dual-suspended core structure has been proposed for realizing low loss and polarization-insensitive coupling length in the THz frequency region. The fiber core of the directional coupler consists of two round solid dielectric rods supported by two intersecting thin dielectric layers. Numerical simulations performed using the full-vector finite element method show that a short polarization-independent coupling length can be obtained by adjusting the geometric parameters of the fiber. Moreover, a low-loss THz fiber directional coupling performance can also be achieved at a central frequency of 1.00-THz and approximately 0.16 THz of bandwidth. For example, a coupler with a length of 0.421 cm has a transmission loss of 0.30 dB and 0.26 dB for the x- and y-polarization modes, respectively. © 2020
关键词	Birefringence Coupling length Fiber coupler Transmission loss
DOI	10.1016/j.optcom.2020.126497
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000588332800011
出版者	Elsevier B.V., Netherlands
EI入藏号	20204109338340
引用统计	被引频次：9[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/181661/93743
专题	信息光子学研究室
通讯作者	Ke, Qiang
作者单位	1.The School of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, Jiangxi; 330022, China; 2.The Key Lab of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai; 200444, China; 3.Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, Nanchang, Jiangxi; 330022, China; 4.State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an, Shanxi Province; 710119, China; 5.State Grid Jiangxi Electric Power Corporation, Information and Communication Branch, Nanchang, China
推荐引用方式 GB/T 7714	Zhu, Yuan-Feng,Huang, Xu,Ke, Qiang,et al. Low loss and polarization-insensitive coupling length for a terahertz fiber directional coupler with symmetric dual-suspended core structure[J]. Optics Communications,2021,480.
APA	Zhu, Yuan-Feng.,Huang, Xu.,Ke, Qiang.,Liu, Guiqiang.,Rao, Chun-Fang.,...&Wang, Hua.(2021).Low loss and polarization-insensitive coupling length for a terahertz fiber directional coupler with symmetric dual-suspended core structure.Optics Communications,480.
MLA	Zhu, Yuan-Feng,et al."Low loss and polarization-insensitive coupling length for a terahertz fiber directional coupler with symmetric dual-suspended core structure".Optics Communications 480(2021).

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