Graphene-based optical phase modulation of waveguide transverse electric modes

@inproceedings{Midrio2014GraphenebasedOP,
  title={Graphene-based optical phase modulation of waveguide transverse electric modes},
  author={Michele Midrio and Paola Galli and Marco Gerini Romagnoli and Lionel C. Kimerling and Jurgen Michel},
  year={2014}
}
In this paper we report TE-mode phase modulation obtained by inducing a capacitive charge on graphene layers embedded in the core of a waveguide. There is a biasing regime in which graphene absorption is negligible but large index variations can be achieved with a voltage–length product as small as VπLπ≃0.07  V  cm for straight waveguides and VπLπ≃0.0024  V  cm for 12 μm radius microring resonators. This phase modulation device uniquely enables a small signal amplitude <1  V with a micrometer… CONTINUE READING

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