Design and optimization of dispersion-flattened microarray-core fiber with ultralow loss for terahertz transmission

The paper establishes a late-model of microarray-core based polymer optical fiber with flattened dispersion and ultra-low losses. Its transmission properties are calculated by virtue of the beam propagation approach. From the simulation results, it finds that the modelled fiber has a near-zero dispersion property of 0.29 +/- 0.16 ps/THz/cm in a frequency area of 1.05 THz to 1.78 THz, a high birefringence of 1.6 x 10(-3), an ultra-low confinement loss of 3.78 x 10(-10) dB/m, an effective mode field zone of 4.6 x 105 lm2, and a nonlinear coefficient of 1.2 km(-1).W-1. With these good properties, the modelled fiber could be applied for ethanol detection and polarization main-taining THz applications. (C) 2022 THE AUTHORS. Published by Elsevier BV on behalf of Faculty of Engineering,

Automated summary

The paper presents a newly developed microarray-core based polymer optical fiber with flattened dispersion and ultra-low losses. Through simulation, the fiber is found to have near-zero dispersion, high birefringence, ultra-low confinement loss, effective mode field zone, and nonlinear coefficient. The fiber shows potential applications in ethanol detection and polarization maintaining THz applications.