Modelling and simulation of a porous core photonic crystal fibre for terahertz wave propagation

Journal Article · Mon Apr 15 04:00:00 EDT 2019 · Optical and Quantum Electronics

DOI:https://doi.org/10.1007/S11082-019-1832-X· OSTI ID:22950312

Abas, Pg Emeroylariffion ^[1]; Ali, Sharafat ^[2]; Begum, Feroza ^[1]

---

1. Universiti Brunei Darussalam, Faculty of Integrated Technologies (Brunei Darussalam)
2. Massey University, Department of Mechanical & Electrical Engineering, School of Food & Advanced Technology (New Zealand)

A porous core photonic crystal fibre based on conventional hexagonal lattice cladding is proposed for propagating terahertz radiation. The structure is designed and theoretically investigated using full vectorial finite element method. Simulation results show that at 300 µm core diameter, with a high porosity of 85%, and an operating frequency of 1.3 THz, the proposed fibre reduces the bulk absorption loss of cyclic olefin copolymer (TOPAS) by about 81%, which corresponds to an ultra-low effective material loss value of 0.039 cm{sup −1}. Furthermore, the proposed fibre shows near zero dispersion coefficient of 0.47 ps/THz/cm with an extremely small variation of 0.05 over a broad 1.3 THz bandwidth; with confinement and bending losses investigated and found to be negligibly low. It is anticipated that the proposed waveguide can potentially be used for short range transmission of terahertz radiation in the communication window.

• OSTI ID: 22950312
• Journal Information: Optical and Quantum Electronics, Journal Name: Optical and Quantum Electronics Journal Issue: 4 Vol. 51; ISSN OQELDI; ISSN 0306-8919
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ABSORPTION
ALKENES
BENDING
CLADDING
COMMUNICATIONS
COPOLYMERS
CRYSTALS
FIBERS
FINITE ELEMENT METHOD
HEXAGONAL LATTICES
LOSSES
SIMULATION
TRANSMISSION
WAVE PROPAGATION
WAVEGUIDES