Broadly tunable mid-infrared VECSEL for multiple components hydrocarbon gas sensing
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Author / Producer
Date
2014-12
Publication Type
Journal Article
ETH Bibliography
yes
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OPEN ACCESS
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Abstract
A new sensing platform to simultaneously identify and quantify volatile C1 to C4 alkanes in multi-component gas mixtures is presented. This setup is based on an optically pumped, broadly tunable mid-infrared vertical-external-cavity surface-emitting laser (VECSEL) developed for gas detection. The lead-chalcogenide VECSEL is the key component of the presented optical sensor. The potential of the proposed sensing setup is illustrated by experimental absorption spectra obtained from various mixtures of volatile hydrocarbons and water vapor. The sensor has a sub-ppm limit of detection for each targeted alkane in a hydrocarbon gas mixture even in the presence of a high water vapor content.
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published
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Journal / series
Volume
117 (3)
Pages / Article No.
935 - 939
Publisher
Springer
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Software
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Date collected
Date created
Subject
PbSe; Tuning Range; Difference frequency generation; Laser linewidth; Large Tuning Range
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Notes
It was possible to publish this article open access thanks to a Swiss National Licence with the publisher.