Detection of acetylene gas using optical correlation spectroscopy

Amy Cheung; Walter Johnstone; David Moodie

doi:10.1117/12.623817

23 May 2005 Detection of acetylene gas using optical correlation spectroscopy

Amy Cheung, Walter Johnstone, David Moodie

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623817
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

A novel variation in optical correlation spectroscopy is presented. A semiconductor optical amplifier (SOA) is employed as the light source and an optical fibre delay line is used to achieve the 180° phase shift between the reference and measurement signals. The system was tested using acetylene (C2H2) gas. Absorption data from the HITRAN database is used to model the theoretical response of the system. Experimental results for the detection of various acetylene gas concentrations have been obtained and compared with theory.

Citation Download Citation

Amy Cheung, Walter Johnstone, and David Moodie "Detection of acetylene gas using optical correlation spectroscopy", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623817

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