Journal
RESULTS IN PHYSICS
Volume 17, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2020.103092
Keywords
Finite element method; Hollow core fiber; Polarization filter; Crosstalk
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A Zeonex based loss hollow-core anti-resonant fiber (HC-ARF) for polarization filter (PF) application in the terahertz (THz) spectral range is presented here. The finite element method, a practical and precise computational technique, is used to compute the modal properties of the designed fiber. Simulation results indicate minimum loss of 0.34 dB/m at 1.1 THz, a loss less than 2 dB/m for a large bandwidth of 460 GHz in the horizontal polarization mode (HPM) due to the inclusion of nested tubes in that direction. In addition, a 520 GHz filtering bandwidth with crosstalk higher than 20 dB can be obtained within 1 m of the proposed fiber.
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