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Proceedings Paper

Overview of quantum cascade laser research at the Center for Quantum Devices
Author(s): S. Slivken; A. Evans; J. Nguyen; Y. Bai; P. Sung; S. R. Darvish; W. Zhang; M. Razeghi
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Paper 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.

Paper Details

Date Published: 1 February 2008
PDF: 8 pages
Proc. SPIE 6900, Quantum Sensing and Nanophotonic Devices V, 69000B (1 February 2008); doi: 10.1117/12.767315
Show Author Affiliations
S. Slivken, Northwestern Univ. (United States)
A. Evans, Northwestern Univ. (United States)
J. Nguyen, Northwestern Univ. (United States)
Y. Bai, Northwestern Univ. (United States)
P. Sung, Northwestern Univ. (United States)
S. R. Darvish, Northwestern Univ. (United States)
W. Zhang, Northwestern Univ. (United States)
M. Razeghi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 6900:
Quantum Sensing and Nanophotonic Devices V
Rengarajan Sudharsanan; Christopher Jelen, Editor(s)

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