Open AccessSimplified modeling and optimization of silicon modulators based on free-carrier plasma dispersion effect
Author(s) -
Diego PérezGalacho,
Delphine MarrisMorini,
Remco Stoffer,
Éric Cassan,
Charles Baudot,
Twan Korthorst,
F. Bœuf,
Laurent Vivien
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.026332
Subject(s) - silicon , materials science , reduction (mathematics) , dispersion (optics) , optics , phase (matter) , phase modulation , optoelectronics , computer science , electronic engineering , physics , engineering , phase noise , geometry , mathematics , quantum mechanics
In this paper, a simplified model of silicon phase modulators is presented that enables favorable accuracy together with a substantial reduction in computational effort and without the requirement of semiconductor TCAD device simulation software. This permits fast optimization of the different parameters of a modulator. The model was successfully implemented in Phoenix Optodesigner optical software allowing the optimization of silicon phase shifters for different applications. Moreover, this model presents a great potential for the simulation of modulators based on PN interdigitated junctions, which normally require complex and time consuming 3D simulations. Simulation time was reduced by a factor of 6 for the lateral PN junction based modulator, and two orders of magnitude reduction was obtained for interdigitated PN junctions based modulators.