Time-domain compact macromodeling of linear photonic circuits via complex vector fitting

作     者：Yinghao Ye Domenico Spina Dirk Deschrijver Wim Bogaerts Tom Dhaene 

作者机构：IDLabDepartment of Information TechnologyGhent University-imecGhentBelgium Photonics Research GroupDepartment of Information TechnologyGhent University-imecGhentBelgium The Center for Nano-and Biophotonics(NB-Photonics)GhentBelgium 

出 版 物：《Photonics Research》 (光子学研究（英文版）)

年 卷 期：2019年第7卷第7期

页      面：86-97页

核心收录：

学科分类：0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：Fonds Wetenschappelijk Onderzoek(FWO)(G013815N G056919N) 

主　　题：Time-domain compact circuits parameters 

摘      要：In this paper, a novel baseband macromodeling framework for linear passive photonic circuits is proposed, which is able to build accurate and compact models while taking into account the nonidealities,such as higher order dispersion and wavelength-dependent losses of the circuits. Compared to a previous modeling method based on the vector fitting algorithm, the proposed modeling approach introduces a novel complex vector fitting technique. It can generate a half-size state-space model for the same applications, thereby achieving a major improvement in efficiency of the time-domain simulations. The proposed modeling framework requires only measured or simulated scattering parameters as input,which are widely used to represent linear and passive systems. Three photonic circuits are studied to demonstrate the accuracy and efficiency of the proposed technique.