Optimizing band-edge slow light in silicon-on-insulator waveguide gratings

Marco Passoni; Dario Gerace; Liam O'Faolain; Lucio Claudio Andreani

doi:10.1364/OE.26.008470

Optimizing band-edge slow light in silicon-on-insulator waveguide gratings

Marco Passoni, Dario Gerace, Liam O'Faolain, Lucio Claudio Andreani

Research output: Contribution to journal › Article › peer-review

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.

Original language	English
Article number	315253
Pages (from-to)	8470-8478
Number of pages	9
Journal	Optics Express
Volume	26
Issue number	7
DOIs	https://doi.org/10.1364/OE.26.008470
Publication status	Published - 23 Mar 2018

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10.1364/OE.26.008470Licence: Other

Passoni_2018_OE_slowlight_FinalPubVersion
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
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Cite this

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title = "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.",

author = "Marco Passoni and Dario Gerace and Liam O'Faolain and Andreani, \{Lucio Claudio\}",

note = "Funding: European Union Horizon H2020 Programme (H2020-ICT27-2015, COSMICC no. 688516).",

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AU - Passoni, Marco

AU - Gerace, Dario

AU - O'Faolain, Liam

AU - Andreani, Lucio Claudio

N1 - Funding: European Union Horizon H2020 Programme (H2020-ICT27-2015, COSMICC no. 688516).

PY - 2018/3/23

Y1 - 2018/3/23

N2 - 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.

AB - 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.

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M3 - Article

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JO - Optics Express

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M1 - 315253

ER -

Optimizing band-edge slow light in silicon-on-insulator waveguide gratings

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COSMICC: H2020 Collaboration COSMIC

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Optimizing band-edge slow light in silicon-on-insulator waveguide gratings

Abstract

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COSMICC: H2020 Collaboration COSMIC

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