| Authors: | T. Ullrick, D. Spina, W. Bogaerts, T. Dhaene | | Title: | Wideband Parametric Baseband Macromodeling of Linear and Passive Photonic Circuits via Complex Vector Fitting | | Format: | International Journal | | Publication date: | 9/2023 | | Journal/Conference/Book: | Scientific Reports
| | Volume(Issue): | 13 p.Article number 15407 (22 pages) | | Citations: | Look up on Google Scholar
| | Download: |
 (3.2MB) |
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. Related Research Topics
Related Projects
|
|
