Ultra low bending loss equiangular spiral photonic crystal fibers in the terahertz regime

Abstract

An Equiangular Spiral Photonic Crystal Fiber (ES-PCF) design in Topas® for use in the Terahertz regime is presented. The design shows ultra low bending loss and very low confinement loss compared to conventional Hexagonal PCF (H-PCF). The ES-PCF has excellent modal confinement properties, together with several parameters to allow the optimization of the performance over a range of important characteristics. A full vector Finite Element simulation has been used to characterize the design which can be fabricated by a range of techniques including extrusion and drilling

Hybrid porous‐core microstructure terahertz fibre with ultra‐low bending loss and low effective material loss

“…Based on the porous‐core MOFs, a few proposed designs have also been reported in the literature to achieve low bending losses. An equiangular spiral MOF has been reported in [18] having a bending loss of 2.3 cm −1 for a bending radius of 2 cm. Besides, a porous‐core THz MOF has been demonstrated in [19], which showed a bending loss of about 0.023 cm −1 for a tight‐bending radius of 1 cm.…”

The perspectives and trends of THz technology in material research for future communication - a comprehensive review

“…So, it is adapted to transmit broadband terahertz pulse that remain polarized. Other photonic crystal fibers with various shapes, such as square [187] and hexagon [188,189], have also attracted great attention.…”

Polymer Based PCF with High Nonlinearity and Low Bend Loss: A New Modeling

“…For example, the ES PCF has excellent modal confinement properties, together with several parameters to allow the optimization of the performance over a range of important characteristics. This ES PCF design shows ultra low bending loss [12] and very low confinement loss and ability for very effective control of the modal field. The fabrication of the ES PCF should be possible using the extrusion and/or drilling.…”