Double slot high-k waveguide grating couplers for silicon photonics

@article{Naiini2012DoubleSH,
  title={Double slot high-k waveguide grating couplers for silicon photonics},
  author={Maziar M. Naiini and Christoph Henkel and G Malm and Mikael Ostling},
  journal={70th Device Research Conference},
  year={2012},
  pages={69-70}
}
Fully etched grating couplers are manufactured for double slot high-k waveguides. These couplers have a maximum efficiency of 22 %. This higher achieved efficiency despite the lack of a matching fluid compared to the case of single slots (18.5 % ) is due to the higher confinement of the optical power in the slot region for the double slot structures… CONTINUE READING