High stability external cavity diode laser system for photoacoustic gas detection

Authors
Mohacsi, A Szakall, M Bozoki, Z Szabo, G Bor, Z
Citation
A. Mohacsi et al., High stability external cavity diode laser system for photoacoustic gas detection, LASER PHYS, 10(1), 2000, pp. 378-381
Citations number
7
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Optics & Acoustics
Journal title
LASER PHYSICS
ISSN journal
1054660X → ACNP
Volume
10
Issue
1
Year of publication
2000
Pages
378 - 381
Database
ISI
SICI code
1054-660X(200001/02)10:1<378:HSECDL>2.0.ZU;2-H
Abstract
In this paper, we present a photoacoustic system for high sensitivity water vapor detection. The system is based on specially designed external cavity diode laser. The laser has a 200 GHz mode-hopping free tuning range, narro w linewidth, and high (better than 60 MHz/h) long-term frequency stability. The PA system was demonstrated to have a sub-ppm detection limit for water vapor.