Ultrahigh birefringence, ultralow material loss porous core single-mode fiber for terahertz wave guidance

被引：81

作者：

Ahmed, Kawsar ^{[1
,2
]}

Chowdhury, Sawrab ^{[1
]}

Paul, Bikash Kumar ^{[1
,2
]}

Islam, Md. Shadidul ^{[1
]}

Sen, Shuvo ^{[1
]}

Islam, Md. Ibadul ^{[1
]}

Asaduzzaman, Sayed ^{[1
,2
,3
]}

机构：

[1] Mawlana Bhashani Sci & Technol Univ, Dept Informat & Commun Technol, Tangail 1902, Bangladesh

[2] Grp Bio photomati, Tangail 1902, Bangladesh

[3] Daffodil Int Univ, Dept Software Engn, Dhaka 1207, Bangladesh

来源：

APPLIED OPTICS | 2017年 / 56卷 / 12期

关键词：

DISPERSION;

D O I：

10.1364/AO.56.003477

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, a novel polarization-maintaining single-mode photonic crystal fiber (PCF) has been suggested for terahertz (THz) transmission applications. The reported PCF has five layers of hexagonal cladding with two layers of porous core. The cladding and core territory of the PCF are constituted by circular and elliptical air cavities, accordingly acting as a dielectric medium. Different geometrical parameters of the proposed PCF including pitches and diameters of circular air holes with the major and minor axes of elliptical air cavities being varied with the optimized structure. Various effects on the proposed PCF such as eccentricity and porosity effects are also carefully investigated. The numerical process is investigated by one of the most popular methods, the finite element method (FEM). All numerical computational results have revealed the ultrahigh birefringence in the order of 1.19 x 10(-02) as well as the ultralow bulk absorption material loss of 0.0689 cm(-1) at the 1 THz activation frequency. Besides, the V-parameter is also investigated for checking the proposed fiber modality. The proposed single-mode porous core hexagonal PCF is expected to be useful for convenient broadband transmission and numerous applications in the areas of THz technology. (C) 2017 Optical Society of America

引用

页码：3477 / 3483

页数：7

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