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Nonlinear FDTD method for the simulation of the optical effects in silicon waveguides

Published: 19 September 2013 Publication History

Abstract

As the interest for Silicon-On-Insulator (SOI) waveguides is increasing, it would be valuable to have an explicit simulation method to provide a framework for quick and low cost analysis of the optical effects in silicon waveguides. This paper focuses on modeling the inherent optical properties of silicon waveguides using the finite-difference-time-domain (FDTD) method. Emphasis was placed on nonlinearities which are: Kerr effect, Two Photon Absorption (TPA), Stimulated Raman Scattering, Free Carrier Absorption (FCA) and Free Carrier Plasma (FCP). These effects have been included directly in an extended FDTD simulator through time-dependent Maxwell's equations and using the nonlinear constitutive relation. The objective is to develop a time-domain algorithm for investigating the complex physical phenomena inherited in silicon waveguides before photonic devices are fabricated. The FDTD method is an attractive choice due to its explicit nature which makes the least possible approximations, its simplicity and its accuracy of the results. To check the validity of our simulations, the results have been compared with those shown in the literature.

References

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Lin, Q., Painter, O. J. and Agrawal, G. P. 2007. Nonlinear optical phenomena in silicon waveguides: Modeling and applications. Opt. Express 15, 25 (Dec. 2007), 16604--16644. DOI = http://dx.doi.org/10.1364/OE.15.016604.
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  • (2023)Impact of nonlinear effects on the silicon-based waveguides and microring resonatorsAOPC 2022: Optoelectronics and Nanophotonics10.1117/12.2662914(64)Online publication date: 23-Jan-2023

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    cover image ACM Other conferences
    PCI '13: Proceedings of the 17th Panhellenic Conference on Informatics
    September 2013
    359 pages
    ISBN:9781450319690
    DOI:10.1145/2491845
    Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected]

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    • University of Macedonia
    • Aristotle University of Thessaloniki
    • The University of Sheffield: The University of Sheffield
    • Alexander TEI of Thessaloniki

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    New York, NY, United States

    Publication History

    Published: 19 September 2013

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    Author Tags

    1. computational electromagnetic methods
    2. finite-difference-time-domain (FDTD) methods
    3. nonlinear optics
    4. silicon-on-insulator (SOI) waveguides

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    PCI 2013
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    • The University of Sheffield
    PCI 2013: 17th Panhellenic Conference on Informatics
    September 19 - 21, 2013
    Thessaloniki, Greece

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    • (2023)Impact of nonlinear effects on the silicon-based waveguides and microring resonatorsAOPC 2022: Optoelectronics and Nanophotonics10.1117/12.2662914(64)Online publication date: 23-Jan-2023

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