Highly birefringent photonic crystal fiber with D-shaped air holes for terahertz (THz) application

被引：0

作者：

Wang B. ^{[1
]}

Jia C. ^{[1
]}

Yang J. ^{[1
]}

Di Z. ^{[1
]}

Yao J. ^{[2
]}

机构：

[1] College of Electrical Engineering, North China University of Science and Technology, Hebei, Tangshan

[2] College of Precision Instrument and Optoelectronics Engineering, Key Lab. of Opto-Electronics Information Science and Technology, Ministry of Education, Tianjin University, Tianjin

来源：

Journal of Optical Communications | 2023年 / 44卷 / s1期

关键词：

bending loss; birefringence; dispersion; photonic crystal fiber; THz;

D O I：

10.1515/joc-2020-0201

中图分类号：

学科分类号：

摘要：

A new type of high birefringence terahertz (THz) band photonic crystal fiber (PCF) is proposed. D-shaped air holes are introduced into the core of the PCF and the cladding near the core. Some important parameters of this waveguide were researched in the range of 0.6–1.2 THz. The simulation results show that the proposed fiber has a high birefringence of 0.0425 at 0.7 THz. In addition, the confinement loss and the effective mode area are respectively 6.63 × 10−7 dB/m and 0.77 × 105 μm2, when the operating frequency is 1 THz and the high birefringence of 0.04 is maintained. At the same time, very low bending loss and near zero flat positive dispersion are obtained. And has single-mode operating characteristics in the entire research frequency range. The PCF structure will provide new solutions for the application of THz waves and the design of THz waveguides. © 2023 Walter de Gruyter GmbH. All rights reserved.

引用

页码：S623 / S630

页数：7

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