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<p>The proposed manuscript presents a unique five-ring micro-structured, modified hexagonal photonic crystal fiber (MH-PCF), showing the property of high-birefringence, low confinement loss and low negative slopping dispersion (NSD). The optical characteristics of the offered MH-PCF structure are precisely examined employing the finite element method (FEM) through the COMSOL Multiphysics software, in accordance with the perfectly matched layer (PML) boundary restriction. The offered MH-PCF yields a high birefringence of 6.4 × 10<sup>− 2</sup>, negative dispersion of -385 ps·km<sup>− 1</sup>·nm<sup>− 1</sup> and confinement loss of 10<sup>− 1</sup> dB/cm at the conventional optical data transmission wavelength of 1.55&#xa0;μm. Moreover, for the alteration under fabrication process is considered up to ± 2% for the offered MH-PCF design in this write-up. This type of PCF could be implemented in numerous physical sensing applications, as well as in other major fields, such as medical imaging and polarization controlled long-distance optical data communication, etc.</p>

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Numerical investigation of a modified hexagonal photonic crystal fiber with high birefringence for multipurpose optical applications

  • 期刊论文

  • 发表日期：

    2025年11月8日

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  • Russel Reza Mahmud,
  • Md. Sabbir Hasan Sohag,
  • Noor Mohammadd,
  • Abdullah Al Mahmud Nafiz,
  • Ruhul Amin,
  • Md. Anwar Hossain

摘要

The proposed manuscript presents a unique five-ring micro-structured, modified hexagonal photonic crystal fiber (MH-PCF), showing the property of high-birefringence, low confinement loss and low negative slopping dispersion (NSD). The optical characteristics of the offered MH-PCF structure are precisely examined employing the finite element method (FEM) through the COMSOL Multiphysics software, in accordance with the perfectly matched layer (PML) boundary restriction. The offered MH-PCF yields a high birefringence of 6.4 × 10− 2, negative dispersion of -385 ps·km− 1·nm− 1 and confinement loss of 10− 1 dB/cm at the conventional optical data transmission wavelength of 1.55 μm. Moreover, for the alteration under fabrication process is considered up to ± 2% for the offered MH-PCF design in this write-up. This type of PCF could be implemented in numerous physical sensing applications, as well as in other major fields, such as medical imaging and polarization controlled long-distance optical data communication, etc.