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Proceedings Paper

Atmospheric trace constituent detection by CW-FM-LD-ladar: a concept development
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Paper Abstract

A general methodology for a spectroscopic continuous-wave, frequency-modulated ladar (CW-FM-ladar) concept based on principles of both CW-FM-range-finding and modulation spectroscopy, together with modern techniques of optical signal transmission using tunable laser diodes, signal detection and heterodyne processing are presented. A mathematical description of trace gas detection using CW-LD ladar is developed including the relationship between the heterodyne echo-signal amplitudes and frequencies and trace gas concentration for each range. In particular, precise range and gas retrieval resolution limits based on the transmitting signal modulation and absorption line parameters are developed.

Paper Details

Date Published: 13 September 2004
PDF: 9 pages
Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); doi: 10.1117/12.564439
Show Author Affiliations
Ravil R. Agishev, CUNY/City College (United States)
Rafael K. Sagdiev, Kazan State Technical Univ. (Russia)
Barry M. Gross, CUNY/City College (United States)
Fred Moshary, CUNY/City College (United States)
Alexander Gilerson, CUNY/City College (United States)
Samir A. Ahmed, CUNY/City College (United States)
Adolfo Comeron, Univ. Politecnica de Catalunya (Spain)

Published in SPIE Proceedings Vol. 5412:
Laser Radar Technology and Applications IX
Gary W. Kamerman; Gary W. Kamerman, Editor(s)

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