Design of Low Loss Porous Core Fiber for Terahertz Regime using ZeonexPages 294-300
Saiful Islam Tuhin Abstract:
In this research, a Zeonex-based single-mode micro-structured fiber with a hybrid cladding is proposed for THz wave propagation. The investigation utilizes the Finite Element Method (FEM) with a Perfectly Matched Layer (PML) boundary condition to examine key parameters such as single-modeness, effective mode area, confinement loss, and dispersion. Simulation results indicate a very low effective loss due to absorption at an operating frequency of 1 THz (0.04 cm-1). A flat dispersion (0.73 ± 0.13 ps/THz/cm) is also observed over a large bandwidth (0.5-1.4 THz). Zeonex, a cyclo-olefin polymer (COP), is selected as the base material due to its favorable properties, including its suitability for fiber drawing. The proposed fiber can be fabricated using existing fabrication techniques and is suitable for THz band applications. Keywords: Zeonex-based fiber,
THz wave propagation,
Micro-structured fiber,
FEM simulation,
Confinement loss
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