Quantum cascade lasers immune to optical facet damage

TransWave Photonics proposes to develop a high reliability, monolithic, low-production-cost quantum cascade laser photonic integrated circuit integrated with a large-area output aperture designed for robust, high-damage threshold, high-power emission. Leveraging our expertise in mid-infrared photonic integrated circuit design, we expect to demonstrate a new type of surface emitting quantum cascade devices capable of producing more than 20W power at wall-plug efficiency of more than 20%, monolithically integrated, via a low-loss waveguide, with a surface emitting outcoupler with dimensions no less than 1 mm x 10 µm.