Next Generation Quantum Cascade Lasers Optimized for High Power Midwave Infrared Operation

Physical Sciences Inc. (PSI), in collaboration with Thorlabs Quantum Electronics (TQE), proposes to develop a new, state of the art, high power, high efficiency mid-wave infrared (MWIR) quantum cascade laser (QCL), emitting near 4-microns for missile simulator applications, including the Towed Optical Plume Simulator (TOPS). During the Phase I program the PSI-led team worked with Air Force customers and end-users to specify performance requirements for the proposed devices. Based on these requirements the PSI/TQE team plans to conduct multiple rounds of wafer growth, device fabrication and testing in the Phase II program to develop improved devices that meet the performance requirements for missile simulator applications. PSI will integrate the QCLs into compact emitter assemblies and characterize their performance in the laboratory. The assemblies will then be integrated into and tested with the TOPS IR emitter system. This successful SBIR effort will result in reliable high power and high wall plug efficiency MWIR QCL devices commercially available from TQE. The proposed technology falls under the High Power, Midwave Infrared Single Device Quantum Cascade Laser Missions Focus Area.