Optimization of diode-laser-based photoacoustic laser systems for high-sensitivity detection of water vapor, methane, and carbon dioxide

Janos Sneider; Zoltan Bozoki; Arpad Mohacsi; Miklos Szakall; Gabor Szabo; Zsolt Bor

doi:10.1117/12.321026

19 August 1998 Optimization of diode-laser-based photoacoustic laser systems for high-sensitivity detection of water vapor, methane, and carbon dioxide

Janos Sneider, Zoltan Bozoki, Arpad Mohacsi, Miklos Szakall, Gabor Szabo, Zsolt Bor

Author Affiliations +

Proceedings Volume 3573, OPTIKA '98: 5th Congress on Modern Optics; (1998) https://doi.org/10.1117/12.321026
Event: OPTIKA '98: Fifth Congress on Modern Optics, 1998, Budapest, Hungary

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.

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Janos Sneider, Zoltan Bozoki, Arpad Mohacsi, Miklos Szakall, Gabor Szabo, and Zsolt Bor "Optimization of diode-laser-based photoacoustic laser systems for high-sensitivity detection of water vapor, methane, and carbon dioxide", Proc. SPIE 3573, OPTIKA '98: 5th Congress on Modern Optics, (19 August 1998); https://doi.org/10.1117/12.321026

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