Low-power continuous-wave four-wave mixing wavelength conversion in AlGaAs-nanowaveguide microresonators

We experimentally demonstrate enhanced wavelength conversion in a Q 7500 deeply etched AlGaAsnanowaveguide microresonator via degenerate continuous- wave four-wave mixing with a pump power of 24 mW. The maximum conversion efficiency is 43 dB and accounts for 12 dB enhancement compared to that of a straight nanowaveguide. The experimental results and theoretical predictions agree very well and show optimized conversion efficiency of 15 dB. This work represents a step toward realizing a fully integrated optical devices for generating new optical frequencies