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

CORC > 西安光学精密机械研究所 > 中国科学院西安光学精密机械研究所 > 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 1,4,5; Huang, Xu 4; Ke, Qiang 4; Liu, Guiqiang 4; Rao, Chun-Fang 4; Kong, Depeng 3; Mei, Sen 3; Liu, Yunqi 5; Wang, Hua 2
刊名	Optics Communications
	2021-02-01
卷号	480
关键词	Birefringence Coupling length Fiber coupler Transmission loss
ISSN号	00304018
DOI	10.1016/j.optcom.2020.126497
产权排序	4
英文摘要	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
语种	英语
出版者	Elsevier B.V., Netherlands
WOS记录号	WOS:000588332800011
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/93743]
专题	西安光学精密机械研究所_信息光子学研究室
通讯作者	Ke, Qiang
作者单位	1.Key Laboratory of Optoelectronic and Telecommunication of Jiangxi Province, Nanchang, Jiangxi; 330022, China; 2.State Grid Jiangxi Electric Power Corporation, Information and Communication Branch, Nanchang, China 3.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; 4.The School of Physics and Communication Electronics, Jiangxi Normal University, Nanchang, Jiangxi; 330022, China; 5.The Key Lab of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai; 200444, 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).