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Proceedings Paper

CO2 monitoring with a field-deployable NIR standoff environmental sensor
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Paper Abstract

We report standoff open path atmospheric CO2 monitoring with a field deployable, turn key system including a continuous wave (CW)distributed feedback (DFB) laser and an erbium doped fiber amplifier (EDFA) at 1.5-μm. A sensitivity of 28-ppm was achieved over 1.5-km of open air with 200-pW of received power, a 10s acquisition time, and a peak absorption cross section of 8x10-23. This sensitivity corresponds to an error in fractional absorbance of 8x10-3. Closed cell lab sensitivities are better than 3000ppm*m, an error in fractional absorbance of 5x10-4. These results have been achieved using space qualified laser components, un-cooled InGaAs detectors, off the shelf electronics in a rugged all fiber architecture.

Paper Details

Date Published: 23 December 2003
PDF: 8 pages
Proc. SPIE 5154, Lidar Remote Sensing for Environmental Monitoring IV, (23 December 2003); doi: 10.1117/12.503735
Show Author Affiliations
Benjamin R. Neff, ITT Industries, Inc. (United States)
Michael E. Dobbs, ITT Industries, Inc. (United States)
Matthew Gypson, ITT Industries, Inc. (United States)
Jeff Pruitt, ITT Industries, Inc. (United States)
William E. Sharp, ITT Industries, Inc. (United States)


Published in SPIE Proceedings Vol. 5154:
Lidar Remote Sensing for Environmental Monitoring IV
Upendra N. Singh, Editor(s)

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