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Published in:

01-02-2025

Design of a nested photonic crystal fiber supporting 76 + 36 OAM modes for fiber communication

Authors: Khalequzzaman Ansary, Md. Mehedi Hassan, Mohammed Nadir Bin Ali, FNU Israfil, Mohammad Sarwar Hossain Mollah, Abdullah Bin Kasem Bhuiyan, Bikash Kumar Paul

Published in: Journal of Computational Electronics | Issue 1/2025

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Abstract

This study introduces a distinctive entwined photonic crystal fiber (PCF) featuring two distinct and independent directed mode sections, collectively supporting a total of 112 orbital angular momentum (OAM) modes, comprising 76 + 36 modes. The confinement loss (CL) ranges approximately between \(2.49701\times 1{0}^{-11}\) and \(9.13425\times 1{0}^{-9} \text{dB}/\text{m},\) while highest attained OAM purity is \(99.31969\%\) and \(98.99258\%\) at \(H{E}_{2, 1}\) mode, respectively, for both inner and outer rings. All the modes demonstrate ERIDs exceeding \(1{0}^{-4}\), and minimum dispersion variation observed is \(-856 \text{ps}/\text{km}-\text{nm}\). Additionally, we achieved an outstanding isolation performance with the highest attained ISO reaching \(294 \text{dB}\) at \({\text{HE}}_{9, 1}\) mode and observed a substantial effective mode area of 9.15 μm2 and 25.8μm2, respectively, for inner and outer rings. This research leverages COMSOL Multiphysics' finite element method (FEM) and perfectly matched layer (PML) capabilities alongside MATLAB processing to calculate all key properties of the proposed fiber. Therefore, the suggested PCF demonstrates promising prospects for extended-range, high-capacity data transmission within optical communications and applications related to OAM sensing.

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Metadata
Title
Design of a nested photonic crystal fiber supporting 76 + 36 OAM modes for fiber communication
Authors
Khalequzzaman Ansary
Md. Mehedi Hassan
Mohammed Nadir Bin Ali
FNU Israfil
Mohammad Sarwar Hossain Mollah
Abdullah Bin Kasem Bhuiyan
Bikash Kumar Paul
Publication date
01-02-2025
Publisher
Springer US
Published in
Journal of Computational Electronics / Issue 1/2025
Print ISSN: 1569-8025
Electronic ISSN: 1572-8137
DOI
https://doi.org/10.1007/s10825-024-02257-3