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Modeling and Simulation of Vectorial Wave Propagation in Nonlinear Integrated Photonic Devices

A full-wave time-domain simulator of integrated optical structures containing second order nonlinearities has been developed. The simulation algorithm is based on the vectorial formulation of the finite-difference time-domain method. The simulator is capable of accommodating several structures typically utilized in the field of integrated optics. The simulation results of a GaAs-based slab waveguide exhibiting second order nonlinearity show that the FDTD solution of the presented formulation is capable of modeling the vector nature of the light beam. The developed model can be utilized to efficiently analyze and study the performance of different optical structures at arbitrary excitation conditions.