1 February 2008 Overview of quantum cascade laser research at the Center for Quantum Devices
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Abstract
Over the past several years, our group has endeavored to develop high power quantum cascade lasers for a variety of remote and high sensitivity infrared applications. The systematic optimization of laser performance has allowed for demonstration of high power, continuous-wave quantum cascade lasers operating above room temperature. In the past year alone, the efficiency and power of our short wavelength lasers (λ~4.8 μm) has doubled. In continuous wave at room temperature, we have now separately demonstrated ~10% wallplug efficiency and ~700 mW of output power. Up to now, we have been able to show that room temperature continuous wave operation with >100 mW output power in the 3.8< λ<11.5 μm wavelength range is possible.
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S. Slivken, A. Evans, J. Nguyen, Y. Bai, P. Sung, S. R. Darvish, W. Zhang, M. Razeghi, "Overview of quantum cascade laser research at the Center for Quantum Devices", Proc. SPIE 6900, Quantum Sensing and Nanophotonic Devices V, 69000B (1 February 2008); doi: 10.1117/12.767315; https://doi.org/10.1117/12.767315
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