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Recent advances in gas detection using optical correlation spectroscopy

Cheung, A. and Johnstone, W. and Moodie, D. (2005) Recent advances in gas detection using optical correlation spectroscopy. In: Optical Fibers: Applications, 2005-09-01, Warsaw.

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Abstract

A unique approach to gas detection using optical correlation spectroscopy (OCS) has been investigated. By employing a semiconductor optical amplifier (SOA) with an optical fibre delay line to generate the anti-phase signal, zero point drift errors are minimised and compatibility with single mode optical fibre systems has been achieved. Experimental results, obtained for varying concentrations of acetylene (C2H2) gas at different pressures, agree well with the theoretical analysis. Signal-to-noise ratio (SNR) analysis was also performed to predict the theoretical minimum detectable concentration for C2H2.

Item type: Conference or Workshop Item (Paper)
ID code: 11426
Keywords: gas detection, optical correlation spectroscopy , semiconductor optical amplifier, signal-to-noise ratio, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Related URLs:
    Depositing user: Strathprints Administrator
    Date Deposited: 25 Jul 2011 15:33
    Last modified: 04 Oct 2012 17:16
    URI: http://strathprints.strath.ac.uk/id/eprint/11426

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