Monolithic integration of mid-infrared quantum cascade lasers coupled with passive InGaAs waveguides

摘要

We experimentally demonstrate lasing and mode coupling of mid-infrared quantum cascade lasers monolithically integrated with passive InGaAs waveguides for integrated-photonics applications. A waveguide-coupled device produced 30 mW peak power with J_(th)=3.5 kA/cm~2 at room-temperature.