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Proceedings Paper

Optimization of diode-laser-based photoacoustic laser systems for high-sensitivity detection of water vapor, methane, and carbon dioxide
Author(s): Janos Sneider; Zoltan Bozoki; Arpad Mohacsi; Miklos Szakall; Gabor Szabo; Zsolt Bor
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Paper Abstract

Developments towards a portable sensor system for in-situ detection of low concentration of water vapor are described. The system consists of a Littman type external cavity diode laser light source operating around 1125 nm, an acoustically optimized high sensitivity measuring photoacoustic ell, a reference photoacoustic cell, home made electronics and a personal computer for measurement and system control. For high sensitivity water vapor detection a fully computerized measurement protocol has been developed. Test measurements demonstrated that the system is able to detect water vapor concentration below the 10 ppm level.

Paper Details

Date Published: 19 August 1998
PDF: 4 pages
Proc. SPIE 3573, OPTIKA '98: 5th Congress on Modern Optics, (19 August 1998); doi: 10.1117/12.321026
Show Author Affiliations
Janos Sneider, JATE Univ. (Hungary)
Zoltan Bozoki, Research Group on Laser Physics (Hungary)
Arpad Mohacsi, JATE Univ. (Germany)
Miklos Szakall, JATE Univ. (Hungary)
Gabor Szabo, JATE Univ. (Hungary)
Zsolt Bor, JATE Univ. (Hungary)

Published in SPIE Proceedings Vol. 3573:
OPTIKA '98: 5th Congress on Modern Optics
Gyorgy Akos; Gabor Lupkovics; Andras Podmaniczky, Editor(s)

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