| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1543199 | Photonics and Nanostructures - Fundamentals and Applications | 2011 | 6 Pages |
We present polarization-dependent optical transmission properties of a W1 photonic crystal (PhC) waveguide realized in the completely symmetric insulator-on-silicon-on-insulator (IOSOI) material system. For an IOSOI W1 PhC waveguide we found a polarization crosstalk of −15 dB between TE- and TM-polarization. Furthermore, we found a transmitted signal in a spectral range where the calculated bandstructure predicts a bandgap and could verify this by FDTD simulations. This facts have to be taken carefully into account when designing PhC circuits.
Research highlights► Polarization-dependent optical transmission properties of a W1 photonic crystal waveguide realized in an insulator-on-silicon-on-insulator (IOSOI) material system. ► Polarization crosstalk of −15 dB between TE- and TM-polarization. ► Transmitted signal in a spectral range where bandstructure calculations predict a bandgap; verification of this result by FDTD simulations.
