Saturation effects on the coupling efficiency of a nonlinear grating coupler.

We report a theoretical study and a numerical analysis of the coupling efficiency of a grating coupler in a slab waveguide with a nonlinear guiding medium characterized by a saturable index of refraction. A phenomenological relationship is assumed for the saturation of the nonlinearity.

Coherent anti-Stokes Raman scattering in thin-film dielectric waveguides.

We analyze coherent anti-Stokes Raman scattering in thin-film dielectric waveguides. Extraordinarily large signal levels are predicted, and two applications of this phenomenon are discussed.

Parametric mixing in monolayers deposited on thin-film waveguides.

We analyze the parametric mixing of light by molecular monolayers deposited on a thin-film dielectric waveguide. It is shown that large signal levels are possible, even with cw lasers.