Numerical Phase Matching Optimization for Multimode Silicon Nano-Rib Waveguides

We optimize four-wave mixing in a multi-mode nano-rib photonic waveguide, in order to achieve broadband all-optical wavelength conversion and optical phase conjugation. For the purpose of maximizing phase matching, we optimize waveguide dimensions, mode-to-laser assignment and pump laser wavelengths.Four-wave mixing efficiency is evaluated with an integral metric and parameters are derived for full C-band operation of optical phase conjugation and wavelength conversion.