Low Loss High Core Power Fraction Silicon Based Photonic Crystal Fiber for Efficient Wave Propagation in THz Regime

A silicon based high core power fraction photonic crystal fiber is proposed in this study. To design the proposed fiber Finite Element Method is used. A perfectly matched layer is also introduced in this design as a boundary condition. In our proposed fiber we have found confinement loss of 1.052 × 10-15 cm-1 and effective material loss (EML) of 0.078 cm-1 at 1.0 THz frequency. In our proposed fiber we obtained high core power fraction and dispersion loss of around 0.84 ± 0.03 ps/THz/cm. The proposed fiber contains fewer amounts of air holes that make this design very simple. The fabrication possibility of this designed fiber is easy because of its simplicity.