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

Research output: Contribution to journalJournal articleResearchpeer-review

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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