Mapping the broadband polarization properties of linear 2D SOI photonic crystal waveguides

John Canning, Nina Skivesen, Martin Kristensen, Lars Hagedorn Frandsen, Andrei Lavrinenko, Cicero Martelli, Amélie Têtu

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    Abstract

    Both quasi-TE and TM polarisation spectra for a silicon- on-insulator (SOI) waveguide are recorded over (1100-1700) nm using a broadband supercontinuum source. By studying both the input and output polarisation eigenstates we observe narrowband resonant cross coupling near the lowest quasi-TE mode cut-off. We also observe relatively broadband mixing between the two eigenstates to generate a complete photonic bandgap. By careful analysis of the output polarisation state we report on an inherent non-reciprocity between quasi TE and TM fundamental mode cross coupling. The nature of polarisation distinction in such bandgap structures is discussed in the context of polarisation scattering at an interface. (c) 2007 Optical Society of America.
    Original languageEnglish
    JournalOptics Express
    Volume15
    Issue number23
    Pages (from-to)15603-15614
    ISSN1094-4087
    DOIs
    Publication statusPublished - 2007

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