Journal article
Mapping the broadband polarization properties of linear 2D SOI photonic crystal waveguides
Department of Photonics Engineering, Technical University of Denmark1
Risø National Laboratory for Sustainable Energy, Technical University of Denmark2
Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3
Nanophotonics, Department of Photonics Engineering, Technical University of Denmark4
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.
Language: | English |
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Year: | 2007 |
Pages: | 15603-15614 |
ISSN: | 10944087 |
Types: | Journal article |
DOI: | 10.1364/OE.15.015603 |
ORCIDs: | Frandsen, Lars Hagedorn and Lavrinenko, Andrei |