Polarization-independent, multichannel wavelength conversion by difference frequency generation in quasi-phase-matched AlGaAs waveguides

Summary form only given. We have investigated wavelength conversion by quasi-phase-matched difference frequency generation (DFG) in an AlGaAs waveguide. The conversion efficiencies are polarization insensitive while the device also shows polarization diversity. Linear conversion process and spectral inversion properties are demonstrated. Simultaneous conversions of multiple input wavelengths with no cross-talk are demonstrated.