A Novel Octagonal Shaped Porous Core Microstructure Bend Insensitive Fiber for Low Loss THz Wave Transmission


Authors : Raihan Ahmed Shojib, Israt Hossain Iza

Volume/Issue : Volume 5 - 2020, Issue 1 - January

Google Scholar : https://goo.gl/DF9R4u

Scribd : https://bit.ly/2vfA2C0

A newfangled octagonal-shaped porous-core photonic crystal fiber (PCF) with hexagonal cladding is suggested for extraordinarily low loss THz wave propagation. The TOPAS based proposed fiber has achieved nearly inconsiderable bending loss of 6. 5 × 10−18cm−1 , ultra-small confinement loss of 5. 84 × 10−5 dB/cm and a flat material loss of 0.057 cm−1 at 1 THz operating frequency. Further study includes a high-power fraction of core which is about 42% with optimal design parameters. Finite element method (FEM) and circular perfectly matched layer (PML) boundary conditions were used for the characterization of the suggested PCF. The proposed fiber can be used for functional broadband THz communication and low loss application with fabrication feasibility.

Keywords : Finite Element Method, Bending Loss, Effective Material Loss, Terahertz Guidance, Confinement Loss, Photonic Crystal Fiber.

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