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Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting
A novel wideband parametric baseband macromodeling technique for passive photonic devices and circuits is presented. It allows to efficiently estimate the baseband scattering representations of a linear, passive photonic system as a function of a set of design variables, such as geometrical layout o...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10505194/ https://www.ncbi.nlm.nih.gov/pubmed/37717024 http://dx.doi.org/10.1038/s41598-023-41227-w |
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author | Ullrick, Thijs Spina, Domenico Bogaerts, Wim Dhaene, Tom |
author_facet | Ullrick, Thijs Spina, Domenico Bogaerts, Wim Dhaene, Tom |
author_sort | Ullrick, Thijs |
collection | PubMed |
description | A novel wideband parametric baseband macromodeling technique for passive photonic devices and circuits is presented. It allows to efficiently estimate the baseband scattering representations of a linear, passive photonic system as a function of a set of design variables, such as geometrical layout or substrate features. The proposed technique relies on the interpolation of macromodels computed via a complex vector fitting (CVF) algorithm, by adopting a methodology based on amplitude and frequency scaling that preserves, by construction, the physical properties of the system, such as causality, stability and passivity. For a specified combination of the design parameters, a rational CVF model is derived that can be simulated by a wide range of ordinary differential equation (ODE) solvers or circuit simulators. Additionally, time-domain simulations using the computed model can be performed at arbitrary optical carrier frequencies, thus allowing for the simulation of multi-wavelength systems. Two application examples are presented to demonstrate the flexibility and advantages of the proposed method. |
format | Online Article Text |
id | pubmed-10505194 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Nature Publishing Group UK |
record_format | MEDLINE/PubMed |
spelling | pubmed-105051942023-09-18 Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting Ullrick, Thijs Spina, Domenico Bogaerts, Wim Dhaene, Tom Sci Rep Article A novel wideband parametric baseband macromodeling technique for passive photonic devices and circuits is presented. It allows to efficiently estimate the baseband scattering representations of a linear, passive photonic system as a function of a set of design variables, such as geometrical layout or substrate features. The proposed technique relies on the interpolation of macromodels computed via a complex vector fitting (CVF) algorithm, by adopting a methodology based on amplitude and frequency scaling that preserves, by construction, the physical properties of the system, such as causality, stability and passivity. For a specified combination of the design parameters, a rational CVF model is derived that can be simulated by a wide range of ordinary differential equation (ODE) solvers or circuit simulators. Additionally, time-domain simulations using the computed model can be performed at arbitrary optical carrier frequencies, thus allowing for the simulation of multi-wavelength systems. Two application examples are presented to demonstrate the flexibility and advantages of the proposed method. Nature Publishing Group UK 2023-09-16 /pmc/articles/PMC10505194/ /pubmed/37717024 http://dx.doi.org/10.1038/s41598-023-41227-w Text en © The Author(s) 2023 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
spellingShingle | Article Ullrick, Thijs Spina, Domenico Bogaerts, Wim Dhaene, Tom Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title | Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title_full | Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title_fullStr | Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title_full_unstemmed | Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title_short | Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
title_sort | wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10505194/ https://www.ncbi.nlm.nih.gov/pubmed/37717024 http://dx.doi.org/10.1038/s41598-023-41227-w |
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