Effects of Triangular Core Rotation of a Hybrid Porous Core Terahertz Waveguide

Authors

  • Sharafat Ali Graduate Teaching Assistant, University Malaysia Perlis.
  • Nasim Ahmed Senior Lecturer School of Computer And Communication Engineering, University Malaysia Perlis
  • Syed Alwee Professor School of Computer And Communication Engineering, University Malaysia Perlis
  • Monirul islam Graduate Teaching Assistant, University Malaysia Perlis.
  • Sohel Rana Department of Electrical & Electronic Engineering, Bangladesh University
  • Touhid Bhuiyan Department of Software Engineering, Faculty of Science and Information Technology, Daffodil International University

Abstract

In this paper, we investigate the effects for rotating the triangular core air hole arrangements of a hybrid design porous core fiber. The triangular core has been rotated in anti-clockwise direction to evaluate the impact on different waveguide properties. Effective Material Loss (EML), confinement loss, bending loss, dispersion characteristics and fraction of power flow are calculated to determine the impacts for rotating the triangular core. The porous fiber represented here has a hybrid design in the core area which includes circular rings with central triangular air hole arrangement. The cladding of the investigated fiber has a hexagonal array of air hole distribution. For optimum parameters the reported hybrid porous core fiber shows a flat EML of ±0.000416 cm-1 from 1.5 to 5 terahertz (THz) range and a near zero dispersion of 0.4±0.042 ps/THz/cm from 1.25 to 5.0 THz. Negligible confinement and bending losses are reported for this new type of hybrid porous core design. With improved concept of air hole distribution and exceptional waveguide properties, the reported porous core fiber can be considered as a vital forwarding step in this field of research.

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Published

2017-01-16

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Section

Optoelectronics, Photonics, Laser Technology