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Proceedings Paper

Compact quantum cascade laser transmitter
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Paper Abstract

In this paper we present design considerations, thermal and optical modeling results, and device performance for a ruggedized, compact laser transmitter that utilizes a room temperature quantum cascade (QC) laser source. The QC laser transmitter is intended for portable mid-infrared spectroscopy applications, where the 3 to 5 μm and 8 to 12 μm atmospheric transmission window is relatively free of water vapor interference and where the molecular rotational vibration absorption features can be used to detect and uniquely identify chemical compounds of interest. Initial QC laser-based sensor development efforts were constrained by the complications of cryogenic operation. However, improvements in both QC laser designs and fabrication processes have provided room-temperature devices that now enable significant miniaturization and integration potential for national security, environmental monitoring, atmospheric science, and industrial safety applications.

Paper Details

Date Published: 30 April 2009
PDF: 10 pages
Proc. SPIE 7325, Laser Technology for Defense and Security V, 73250F (30 April 2009); doi: 10.1117/12.818034
Show Author Affiliations
Norman C. Anheier, Pacific Northwest National Lab. (United States)
Brian K. Hatchell, Pacific Northwest National Lab. (United States)
Kevin L. Gervais, Pacific Northwest National Lab. (United States)
Michael D. Wojcik, Pacific Northwest National Lab. (United States)
Kannan Krishnaswami, Pacific Northwest National Lab. (United States)
Bruce E. Bernacki, Pacific Northwest National Lab. (United States)


Published in SPIE Proceedings Vol. 7325:
Laser Technology for Defense and Security V
Mark Dubinskii; Stephen G. Post, Editor(s)

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