Research

Supermode dispersion and waveguide-to-slot mode transition in arrays of silicon-on-insulator waveguides


Reference:

De Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M., 2010. Supermode dispersion and waveguide-to-slot mode transition in arrays of silicon-on-insulator waveguides. Optics Letters, 35 (23), pp. 3925-3927.

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    Official URL:

    http://dx.doi.org/10.1364/OL.35.003925

    Abstract

    In this Letter, we report group index measurements of the supermodes of an array of two strongly coupled silicon-on-insulator waveguides. We observe coupling-induced dispersion that is greater than the material and waveguide dispersion of the individual waveguides. We demonstrate that the system transforms from supporting the two supermodes associated with two coupled waveguides to the single mode of a slot waveguide within the investigated spectral range. During the cutoff of the antisymmetric supermode, an anti-crossing between the symmetric TM and antisymmetric TE supermodes has been observed.

    Details

    Item Type Articles
    CreatorsDe Nobriga, C. E., Hobbs, G. D., Wadsworth, W. J., Knight, J. C., Skryabin, D. V., Samarelli, A., Sorel, M. and De La Rue, R. M.
    DOI10.1364/OL.35.003925
    DepartmentsFaculty of Science > Physics
    Research CentresCentre for Photonics and Photonic Materials
    Publisher Statementol_35_23_3925.pdf: This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OL.35.003925 Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
    RefereedYes
    StatusPublished
    ID Code22154

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