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Proceedings Paper

Fibre-coupled photoacoustic sensor for sub-ppm methane monitoring
Author(s): Stephane Schilt; Jean-Philippe Besson; Luc Thevenaz
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Paper Abstract

Sensitive photoacoustic detection of methane with a fiber-coupled 1.65 μm laser is reported. A sensitivity of 0.18 parts-per-million (signal-to-noise ratio = 3) is achieved using a properly designed photoacoustic cell operating on its first longitudinal mode.

Paper Details

Date Published: 9 June 2004
PDF: 4 pages
Proc. SPIE 5502, Second European Workshop on Optical Fibre Sensors, (9 June 2004); doi: 10.1117/12.566792
Show Author Affiliations
Stephane Schilt, Swiss Federal Institute of Technology Lausanne (Switzerland)
Jean-Philippe Besson, Swiss Federal Institute of Technology Lausanne (Switzerland)
Luc Thevenaz, Swiss Federal Institute of Technology Lausanne (Switzerland)


Published in SPIE Proceedings Vol. 5502:
Second European Workshop on Optical Fibre Sensors
Jose Miguel Lopez-Higuera; Brian Culshaw, Editor(s)

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