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Proceedings Paper

CO2 lidar measurements over a 20-km slant path
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Paper Abstract

The Air Force Phillips Laboratory conducted a series of measurements in February, May and August 1995 at the Air Force Maui Optical Station (AMOS) facility on Maui, Hawaii, to determine system requirements for an airborne long path CO2 DIAL system. The lidar incorporates a cavity-matched mode-locked 3-J laser with the 60 cm diameter AMOS Beam Director Telescope. The one-way beam propagation path length was 21.3 km, originating at the AMOS facility on Haleakala at an altitude of 3.050 km ASL, and terminating at a target site near sea level. Both heterodyne and direct detection techniques are compared with respect to radiometric performance and signal statistics. Minimum detectable absorption levels for DIAL systems using both detection techniques and a variety of targets are estimated from long- range measurements with controlled absorbers. The signal correlation as a function of interpulse temporal separation was determined for long-range direct detection measurements. Radiometric models including system optical characteristics, beam propagation considerations, target reflectivity characteristics,a nd atmospheric effects have been developed and validated experimentally. A new receiver system is currently being fabricated and the laser transmitter is being upgraded for pulse-to-pulse wavelength agility, prior to incorporation into a C-135E airborne platform for future flight experiments.

Paper Details

Date Published: 6 January 1997
PDF: 11 pages
Proc. SPIE 2956, Optics in Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing, (6 January 1997); doi: 10.1117/12.263158
Show Author Affiliations
Daniel C. Senft, Rockwell Power Systems (United States)
Marsha J. Fox, Air Force Phillips Lab. (United States)
John D. Gonglewski, Air Force Phillips Lab. (United States)
James A. Dowling, Applied Technology Associates (United States)
Ronald G. Highland, Kaman Sciences Corp. (United States)
Michael L. Shilko Sr., Kaman Sciences Corp. (United States)

Published in SPIE Proceedings Vol. 2956:
Optics in Atmospheric Propagation, Adaptive Systems, and Lidar Techniques for Remote Sensing
Adam D. Devir; Anton Kohnle; Christian Werner, Editor(s)

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