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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Gas detection by cavity ring-down absorption with a fibre optic amplifier loop

Atherton, K. and Stewart, G. and Culshaw, B. (2002) Gas detection by cavity ring-down absorption with a fibre optic amplifier loop. In: Vibrational spectrocopy-based sensor systems. Proceedings of the society of photo-optical instrumentation engineers (SPIE) . SPIE, Bellingham, WA, pp. 25-31. ISBN 0819443050

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Abstract

Cavity ring-down is investigated as a technique to increase the sensitivity of optical fibre gas sensors. The ring-down cavity consists of an optical fibre loop containing a micro-optic gas cell and an erbium-doped optical fibre amplifier. The erbium fibre amplifier introduces gain into the cavity to increase the ring-down times and therefore the system sensitivity. This paper reports an investigation of the system sensitivity