Highly birefringent photonic crystal fibers with near-zero flattened dispersion for polarization-maintaining terahertz transmission

被引：2

作者：

Yang, Huailin ^{[1
]}

Yang, Jian ^{[2
]}

Xu, Qibo ^{[1
]}

Shen, Zhengyu ^{[1
]}

Yang, Hua ^{[1
]}

机构：

[1] Hunan Univ, Coll Comp Sci & Elect Engn, Changsha 410082, Peoples R China

[2] Hunan Univ Chinese Med, Changsha 410208, Peoples R China

来源：

PHYSICA SCRIPTA | 2024年 / 99卷 / 04期

基金：

中国国家自然科学基金;

关键词：

photonic crystal fiber; birefringent; flattened dispersion; terahertz regime; CORE; DESIGN;

D O I：

10.1088/1402-4896/ad328d

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work, we present a novel hexagonal lattice porous-core photonic crystal fiber (PCF) exhibiting high birefringence, low loss, and near-zero flattened dispersion in the terahertz regime. The core design incorporates asymmetric rectangular and triangular air holes to achieve enhanced birefringence performance. The background material, TOPAS, is carefully selected to minimize dispersion and transmission losses. Furthermore, by employing the finite element method, the guiding properties of the proposed PCF are comprehensively investigated. Our simulation results reveal a near-zero flattened dispersion value of +/- 0.2ps & sdot;THz-1 & sdot;cm-1 within a broad frequency range of 0.8-1.6THz, accompanied by an impressive birefringence value of 0.072. Additionally, the PCF demonstrates outstanding characteristics in terms of confinement loss, effective material loss, effective mode area, core power fraction, and bending loss. Considering its exceptional attributes, the proposed PCF holds significant promise for polarization-maintaining applications and terahertz communication systems.

引用

页数：9

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