Performance characteristics of a continuouswave compact widely tunable external cavity interband cascade lasers

Abstract

We present the design and performance of a novel broadly tunable continuous-wave external-cavity interband cascade laser (ECicL). The ICL die growth and fabrication, as well as the external cavity geometry are described. Tuning across the 3.2-3.35 µm wavelength range, limited by the gain width of the ICL active medium, is achieved at a maximum power level of 4 mW. 1. M. Pushkarsky, M. Weida, T. Day, D. Arnone, R. Pritchett, and D. Caffey, " Performance characteristics of a compact widely tunable external cavity quantum cascade laser, " Rev. Laser Eng. 36, 80–83 (2008). 2. T. Day, M. Weida, D. Arnone, M. Pushkarsky, R. Pritchett, and D. Caffey, " High-performance results and applications of miniaturized external-cavity quantum cascade lasers (ECqcL), " Proc. SPIE 7230, 72301M1–8 (2009). 3. R. Q. Yang, " Infrared laser based on intersubband transitions in quantum wells, " Superlattices Microstruct.