Extremely High-Birefringent Asymmetric Slotted-Core Photonic Crystal Fiber in THz Regime

Author

Islam, Raonaqul ; Habib, Md Selim ; Hasanuzzaman, G.K.M. ; Ahmad, Redwan ; Rana, Sohel ; Kaijage, Shubi Felix

Author_Institution

Dept. of Electr. & Electron. Eng., Rajshahi Univ. of Eng. & Technol., Rajshahi, Bangladesh

Volume

27

Issue

21

fYear

2015

Firstpage

2222

Lastpage

2225

Abstract

We present a thorough numerical analysis of a highly birefringent slotted porous-core circular photonic crystal fiber (PCF) for terahertz (THz) wave guidance. The slot shaped air-holes break the symmetry of the porous-core which offers a very high birefringence whereas the compact geometry of the circular cladding confines most of the power in the fiber-core. The fiber structure reported in this letter exhibits simultaneously ultrahigh modal birefringence of 7.5 × 10^-2 and a very low effective absorption loss of 0.07 cm^-1 for y-polarization mode at an operating frequency of 1 THz. It is highly anticipated that the slotted-core waveguide would be of very much convenience in many polarization maintaining THz appliances.

Keywords

birefringence; holey fibres; microwave photonics; optical fibre cladding; optical fibre losses; optical fibre polarisation; photonic crystals; THz regime; absorption loss; circular cladding; compact geometry; extremely high-birefringent asymmetric slotted-core photonic crystal fiber; frequency 1 THz; highly birefringent slotted porous-core circular photonic crystal fiber; modal birefringence; porous-core symmetry; slot shaped air-holes; slotted-core waveguide; terahertz wave guidance; thorough numerical analysis; y-polarization mode; Absorption; Optical fiber dispersion; Optical fiber polarization; Optimized production technology; Polymers; Birefringence; photonic crystal fiber; polarization; porous-core; terahertz;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2457673

Filename

7161304