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.
| Original language | English |
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| DOIs | |
| Publication status | Published - 2005 |
| Event | Optical Fibers: Applications - Warsaw, Poland Duration: 1 Sept 2005 → … |
Conference
| Conference | Optical Fibers: Applications |
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| Country/Territory | Poland |
| City | Warsaw |
| Period | 1/09/05 → … |
Keywords
- gas detection
- optical correlation spectroscopy
- semiconductor optical amplifier
- signal-to-noise ratio