Abstract:
We demonstrate for the first time a nonlinear
finite-difference time-domain (FDTD) analysis of optical parametric
four-wave mixing (FWM) in an actual InGaAsP–InP-based
racetrack microresonator, and the results are compared with measurements
on an experimental prototype. It has been found from
the two-dimensional (2-D) and three-dimensional FDTD analyses
that the resonance frequencies can be reasonably predicted by
an FDTD model by considering the strong material dispersion
of the waveguide medium and that the wavelength conversion by
FWM is not sensitive to the dimensionality of the model; thus, it is
efficiently predicted by the 2-D FDTD model.
