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Proceedings Paper

Phase insensitive frequency modulation LIDAR for long distance CO2 monitoring
Author(s): Andrei Deev; Sheng Wu
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Paper Abstract

Gas monitoring over long distances using Frequency Modulation (FM) spectroscopy require phase insensitive detection scheme because of the severe scintillation problem. We report our effort to develop a long working distance CO2 monitoring LIDAR that uses phase insensitive Two-Tone Frequency Modulation (TTFM) spectroscopy technique. We could detect 10-4 single pass absorption, and could detect 1ppm CO2 level change in normal air.

Paper Details

Date Published: 19 May 2006
PDF: 6 pages
Proc. SPIE 6214, Laser Radar Technology and Applications XI, 62140A (19 May 2006); doi: 10.1117/12.665374
Show Author Affiliations
Andrei Deev, California Institute of Technology (United States)
Sheng Wu, California Institute of Technology (United States)

Published in SPIE Proceedings Vol. 6214:
Laser Radar Technology and Applications XI
Gary W. Kamerman; Monte D. Turner, Editor(s)

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