Journal
IEEE PHOTONICS JOURNAL
Volume 13, Issue 2, Pages -Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JPHOT.2021.3057698
Keywords
Bending; Optical fiber polarization; Refractive index; Optical fiber dispersion; Lattices; Finite element analysis; Optical losses; Photonic crystal fiber; birefringence; dispersion; bending loss; terahertz
Funding
- National Important Basic Research Development Plan of China [2010CB327801]
- Hebei Food and Drug Administration [ZD201516]
- Science and Technology Project of Hebei Education Department [QN2016079]
- North China University of Science and Technology Training Fund [SP201502]
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The new PCF proposed for the terahertz region demonstrates flat dispersion and ultra-high birefringence, making it suitable for short-distance terahertz propagation and sensing applications.
High-performance photonic crystal fiber (PCF) has an important impact on the development of the full potential of complex terahertz systems. A new kind of PCF with D-shaped air holes in core region was proposed for terahertz (THz) region. The numerical simulation results showed that the proposed PCF has a flat dispersion of 0.09 +/- 0.28 ps/THz/cm at 0.8-1.2 THz. At 1 THz, an ultra-high birefringence of 0.0595, a low effective material loss (EML) of 0.0557 cm(-1), and dispersion that can be considered zero were obtained. In addition, other characteristics of the proposed PCF were strictly analyzed, such as confinement loss, bending loss, and effective mode area. The PCF is expected to be used for short distance propagation of terahertz, polarization maintaining and sensing applications of terahertz waves
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