Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform

It is crucial to be time and resource-efficient when enabling and optimizing novel applications and functionalities of optical fibers, as well as accurate computation of the vectorial field components and the corresponding propagation constants of the guided modes in optical fibers. To address these...

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Main Author: Michael Steinke
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Photonics
Subjects:
Online Access:https://www.mdpi.com/2304-6732/8/10/439
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author Michael Steinke
author_facet Michael Steinke
author_sort Michael Steinke
collection DOAJ
description It is crucial to be time and resource-efficient when enabling and optimizing novel applications and functionalities of optical fibers, as well as accurate computation of the vectorial field components and the corresponding propagation constants of the guided modes in optical fibers. To address these needs, a novel full-vectorial fiber mode solver based on a discrete Hankel transform is introduced and validated here for the first time for rotationally symmetric fiber designs. It is shown that the effective refractive indices of the guided modes are computed with an absolute error of less than 10<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></semantics></math></inline-formula> with respect to analytical solutions of step-index and graded-index fiber designs. Computational speeds in the order of a few seconds allow to efficiently compute the relevant parameters, e.g., propagation constants and corresponding dispersion profiles, and to optimize fiber designs.
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spelling doaj.art-aef1709417af4b478a23b398d63f61022023-11-22T19:41:15ZengMDPI AGPhotonics2304-67322021-10-0181043910.3390/photonics8100439Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel TransformMichael Steinke0Institut für Quantenoptik, Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, GermanyIt is crucial to be time and resource-efficient when enabling and optimizing novel applications and functionalities of optical fibers, as well as accurate computation of the vectorial field components and the corresponding propagation constants of the guided modes in optical fibers. To address these needs, a novel full-vectorial fiber mode solver based on a discrete Hankel transform is introduced and validated here for the first time for rotationally symmetric fiber designs. It is shown that the effective refractive indices of the guided modes are computed with an absolute error of less than 10<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mrow></mrow><mrow><mo>−</mo><mn>4</mn></mrow></msup></semantics></math></inline-formula> with respect to analytical solutions of step-index and graded-index fiber designs. Computational speeds in the order of a few seconds allow to efficiently compute the relevant parameters, e.g., propagation constants and corresponding dispersion profiles, and to optimize fiber designs.https://www.mdpi.com/2304-6732/8/10/439optical fibersmodesdiscrete Hankel transform
spellingShingle Michael Steinke
Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
Photonics
optical fibers
modes
discrete Hankel transform
title Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
title_full Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
title_fullStr Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
title_full_unstemmed Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
title_short Full-Vectorial Fiber Mode Solver Based on a Discrete Hankel Transform
title_sort full vectorial fiber mode solver based on a discrete hankel transform
topic optical fibers
modes
discrete Hankel transform
url https://www.mdpi.com/2304-6732/8/10/439
work_keys_str_mv AT michaelsteinke fullvectorialfibermodesolverbasedonadiscretehankeltransform