THz dual-core liquid photonic crystal fiber with high negative dispersion

被引：0
作者：
Yassmin K. A. Alrayk
B. M. Younis
Walid S. El-Deeb
Mohamed Farhat O. Hameed
S. S. A. Obayya
机构：
[1] Zagazig University,Electronics and Communications Engineering Department, Faculty of Engineering
[2] Zewail City of Science,Centre for Photonics and Smart Materials
[3] Technology and Innovation,Department of Electronics and Communications Engineering
[4] Misr Higher Institute for Engineering and Technology (MET),Center of Nanotechnology, Zewail City of Science, Technology and Innovation
[5] October Gardens,Mathematics and Engineering Physics Department, Faculty of Engineering
[6] University of Mansoura,Department of Electronics and Communications Engineering, Faculty of Engineering
[7] University of Mansoura,undefined
来源：
Optical and Quantum Electronics | 2023年 / 55卷
关键词：
Porous core photonic crystal fiber (PCF); Terahertz; Liquid crystal fiber; Dispersion compensation;
D O I：
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中图分类号：
学科分类号：
摘要：
A novel photonic crystal fiber (PCF) design is proposed and analyzed with highly negative dispersion for THz applications. The reported PCF has TOPAS background material due to its low material loss in THz regime. Further, dual porous cores are constructed and selectively infiltrated with liquid crystal (LC) material to control the dispersion characteristics of the reported PCF. The basic operation of the suggested dual core LCPCF (DC-LCPCF) depends on the optical coupling between the supported modes of the two porous core regions in the THz regime to achieve high negative dispersion for the two fundamental polarizations: transverse electric (TE) and transverse magnetic (TM). The coupling can be switched between the TE and TM modes by applying an external electric field on the LC material via two metallic electrodes. The full vectorial finite element method (FVFEM) is utilized to study the dispersion characteristics of the DC-LCPCF structure. The obtained results reveal that the TE and TM modes have large negative chromatic dispersions of − 44.57 ps/THz/cm and − 30.59 ps/THz/cm at frequencies of 0.386 THz and 0.4027 THz, respectively. So, it will be a solution for further innovation of fiber devices in the THz regime.
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