Broadband Wavelength Conversion in Integrated Waveguides Based on Intermodal Four-Wave Mixing

The realization of broadband all-optical wavelength converters and frequency synthesizers represents a key element for the development of next-generation optical communications systems. In this regard, the use of intermodal nonlinear processes in integrated waveguides has recently attracted significant interest for all-optical processing applications. Here, we present our recent results on the development of integrated and broadband wavelength converters based on the use of the Bragg scattering intermodal four-wave mixing effect in a silicon-rich silicon nitride platform.