Difference-frequency generation in an AlGaAs Bragg-reflection waveguide using an on-chip electrically-pumped quantum dot laser

Nonlinear frequency conversion is ubiquitous in laser engineering and quantum information technology. A long-standing goal photonics to integrate on-chip semiconductor sources with nonlinear optical components. Engineering waveguide lasers spectra that phase-match processes on the same device a formidable challenge. Here, we demonstrate difference-frequency generation an AlGaAs Bragg reflection which incorporates gain medium for pump its core. We include dot layers generate electrically driven light at ~790 nm, engineer structure facilitate this wavelength. perform between 1540 nm 1630 using laser, enabled by broad modal phase-matching of waveguide, measure normalized efficiencies up $(0.64\pm0.21)$ %/W/cm$^2$. Our work demonstrates pathway towards devices utilize active elements strong nonlinearities enable highly integrated photonic systems-on-chip.