A modified single-polarization THz fiber with epsilon-near-zero (ENZ) material

Baoku Wang; Fengjun Tian; Guangyu Liu; Chenyu Yao; Li Li; Xinghua Yang; Jianzhong Zhang

Results in Optics (Nov 2020)

A modified single-polarization THz fiber with epsilon-near-zero (ENZ) material

Baoku Wang,
Fengjun Tian,
Guangyu Liu,
Chenyu Yao,
Li Li,
Xinghua Yang,
Jianzhong Zhang

Affiliations

Baoku Wang: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Fengjun Tian: Corresponding author.; Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Guangyu Liu: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Chenyu Yao: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Li Li: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Xinghua Yang: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Jianzhong Zhang: Key Lab of In-Fiber Integrated Optics of Ministry of Education, and College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China

Journal volume & issue: Vol. 1
p. 100034

Abstract

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A highly birefringent square lattice terahertz (THz) photonic crystal fiber (PCF) coated with epsilon-near-zero (ENZ) material and doped with gain material is proposed for single polarization propagation. Due to introduction of the ENZ rings into square lattice, the large loss difference between the x-polarization mode and all other modes is obtained. The loss of the x-polarization mode is compensated by doping the core area with gain material. The single polarization PCF obtains a loss difference better than 13.2 dB/cm in the frequency range of 0.960–1.307 THz (bandwidth of 0.347 THz). This proposed single polarization THz PCF has some potential applications in coherent THz communication or polarimetric fiber sensor systems.

Published in Results in Optics

ISSN: 2666-9501 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics: Optics. Light
Website: https://www.journals.elsevier.com/results-in-optics

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