Open AccessDesign and study of high birefringent terahertz photonic crystal fiber with hybrid crystal lattice
Author(s) -
Jingli Wang,
Jianquan Yao,
Heming Chen,
Pibin Bing,
Zhongyang Li,
Kai Zhong
Publication year - 2011
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.60.104219
Subject(s) - terahertz radiation , birefringence , photonic crystal fiber , materials science , multiphysics , optics , optoelectronics , core (optical fiber) , wavelength , photonic crystal , physics , finite element method , composite material , thermodynamics
In this paper, we propose a novel high birefringent terahertz (THz) photonic crystal fiber (PCF) with subwavelength circular air hole pairs in the core which are arranged as a hybrid crystal lattice structure. And its high mode birefringence is realized by reducing structure symmetry in core. A professional software COMSOL Multiphysics 4.0 is used for modeling, and the simulation results show that this kind of THz PCF exhibits a high birefringence on a level of 10-2and low confinement loss over a wide THz frequency range. Moreover, the birefringence or confinement loss can be controlled flexibly by adjusting some fiber parameters. Compared with a similar structure PCF for the optical communication, the THz PCF is easier to practically fabricate, owing to its large wavelength size.