Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting
Abstract 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...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-09-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-41227-w |
| _version_ | 1827723554228011008 |
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| author | Thijs Ullrick Domenico Spina Wim Bogaerts Tom Dhaene |
| author_facet | Thijs Ullrick Domenico Spina Wim Bogaerts Tom Dhaene |
| author_sort | Thijs Ullrick |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-03-10T22:02:23Z |
| format | Article |
| id | doaj.art-6fd58bfe43fa4bd3b05f4eaf7dadcba2 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-03-10T22:02:23Z |
| publishDate | 2023-09-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-6fd58bfe43fa4bd3b05f4eaf7dadcba22023-11-19T12:55:35ZengNature PortfolioScientific Reports2045-23222023-09-0113112210.1038/s41598-023-41227-wWideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fittingThijs Ullrick0Domenico Spina1Wim Bogaerts2Tom Dhaene3IDLab, Department of Information Technology, Ghent University-imecIDLab, Department of Information Technology, Ghent University-imecPhotonics Research Group, Department of Information Technology, Ghent University-imecIDLab, Department of Information Technology, Ghent University-imecAbstract 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.https://doi.org/10.1038/s41598-023-41227-w |
| spellingShingle | Thijs Ullrick Domenico Spina Wim Bogaerts Tom Dhaene Wideband parametric baseband macromodeling of linear and passive photonic circuits via complex vector fitting Scientific Reports |
| 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 |
| url | https://doi.org/10.1038/s41598-023-41227-w |
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