Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide.

@article{Debnath2013HighlyEO,
  title={Highly efficient optical filter based on vertically coupled photonic crystal cavity and bus waveguide.},
  author={Kapil Debnath and Karl P. Welna and Marco Ferrera and Kieran Deasy and David G Lidzey and Liam O'Faolain},
  journal={Optics letters},
  year={2013},
  volume={38 2},
  pages={
          154-6
        }
}
We experimentally demonstrate a new optical filter design based on a vertically coupled photonic crystal (PhC) cavity and a bus waveguide monolithically integrated on the silicon-on-insulator platform. The use of a vertically coupled waveguide gives flexibility in the choice of the waveguide material and dimensions, dramatically lowering the insertion loss while achieving very high coupling efficiencies to wavelength scale resonators and thus allows the creation of PhC-based optical filters… CONTINUE READING
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