Optimizing band-edge slow light in silicon-on-insulator waveguide gratings
Abstract
A systematic analysis of photonic bands and group index in silicon grating waveguides is performed, in order to optimize band-edge slow-light behavior in integrated structures with low losses. A combination of numerical methods and perturbation theory is adopted. It is shown that a substantial increase of slow light bandwidth is achieved when decreasing the internal width of the waveguide and the silicon thickness in the cladding region. It is also observed that a reduction of the internal width does not undermine the performance of an adiabatic taper.
Citation
Passoni , M , Gerace , D , O'Faolain , L & Andreani , L C 2018 , ' Optimizing band-edge slow light in silicon-on-insulator waveguide gratings ' , Optics Express , vol. 26 , no. 7 , 315253 , pp. 8470-8478 . https://doi.org/10.1364/OE.26.008470
Publication
Optics Express
Status
Peer reviewed
ISSN
1094-4087Type
Journal article
Rights
Copyright © 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Authors and readers may use, reuse, and build upon the article, or use it for text or data mining without asking prior permission from the publisher or the Author(s), as long as the purpose is non-commercial and appropriate attribution is maintained. This is the final published version of the work, which was originally published at: https://doi.org/10.1364/OE.26.008470
Description
Funding: European Union Horizon H2020 Programme (H2020-ICT27-2015, COSMICC no. 688516).Collections
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