Optimal waveguide dimensions for nonlinear interactions.

  title={Optimal waveguide dimensions for nonlinear interactions.},
  author={Mark Foster and Kevin D. Moll and Alexander L Gaeta},
  journal={Optics express},
  volume={12 13},
We investigate strong light confinement in high core-cladding index contrast waveguides with dimensions comparable to and smaller than the wavelength of incident light. We consider oval and rectangular cross sections and demonstrate that an optimal core size exists that maximizes the effective nonlinearity. We also determine that waveguides with asymmetrical cross sections provide the maximum possible nonlinearity, although only a small improvement over the symmetric case. Furthermore, we find… CONTINUE READING
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