Abstract
AbstractA solid‐core (SC) octagonal photonic crystal fiber (O‐PCF) designed for operation in the terahertz regime aims to enhance its performance. The effective material loss, confinement loss, effective mode area, and nonlinear coefficient have been investigated and compared for two different media: silica glass and Teflon. The terahertz frequency range from 0.7 to 3.0 THz has been utilized to analyze all the results using a full‐vectorial finite element method, with COMSOL Multiphysics software employed for the simulations. With a suitable selection of parameters, the proposed SC O‐PCF demonstrates the potential to minimize losses and increase the effective mode area of the fundamental mode.
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