GaAs/AlAs Triple-Coupled Cavity with InAs Quantum Dots for an Ultrafast Wavelength Conversion Device via the Four-Wave-Mixing

Abstract

Novel ultrafast wavelength conversion devices based on a GaAs/AlAs triple-coupled multilayer cavity are proposed. A clear wavelength-converted signal was demonstrated by four-wave mixing using three cavity modes realized in the triple-coupled cavity. We found that precise control of the cavity modes is important to obtain stronger frequency conversion signals. Significant improvements in the wavelength conversion are also expected by introducing good nonlinear materials in the half-wavelength (/2) cavity.