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Proceedings Paper

Comparision of water vapor measurements made with TEA CO2 lasers using different laser line couples
Author(s): Carlo Bellecci; Sergio Martellucci; P. Aversa; G. E. Caputi; F. De Donato; Pasqualino Gaudio; R. Zoccali
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Paper Abstract

We have designed, developed and constructed a CO2 laser based LIDAR-DIAL field tested with preliminary measurements of concentration of water vapor two. Two years we have developed this preliminary measurements using alternatively the R20 and R18 lines in the branch at 10 micron of two twin CO2 lasers and we have obtained the density profile on a long path of about 800 m. At present the maximum range of the lidar signal on the absorption line is limited by dynamic range and the NEP of our detector. To extend the range of lidar signals a theoretical work has been done about the use of new laser lines for range resolved measurements of water vapor for distance of 1 km. In fact the absorption coefficient of the on-line 10R20 is very strong and the lidar signal for range up to 1 km is obscured by noise of the detector. The theoretical work already gave a good results and presently we are making the experimental measurements to compare with the theoretical data.

Paper Details

Date Published: 3 November 1998
PDF: 6 pages
Proc. SPIE 3433, Propagation and Imaging through the Atmosphere II, (3 November 1998); doi: 10.1117/12.330215
Show Author Affiliations
Carlo Bellecci, INFM and Univ. of Calabria (Italy)
Sergio Martellucci, INFM and Univ. of Rome Tor Vergata (Italy)
P. Aversa, Univ. of Calabria (Italy)
G. E. Caputi, Univ. of Calabria (Italy)
F. De Donato, Univ. of Calabria (Italy)
Pasqualino Gaudio, INFM and Univ. of Calabria (Italy)
R. Zoccali, Univ. of Calabria (Italy)

Published in SPIE Proceedings Vol. 3433:
Propagation and Imaging through the Atmosphere II
Luc R. Bissonnette, Editor(s)

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