Methane sensing using multiple-coupling gaps in hollow-core photonic bandgap fibers
Lazaro, J.M., Cubillas, A.M., Silva-Lopez, M., Conde, O.M., Petrovich, M. and López-Higuera, J.M. (2008) Methane sensing using multiple-coupling gaps in hollow-core photonic bandgap fibers. In, 19th International Conference on Optical Fibre Sensors (OFS19), Perth, Australia, 14 - 18 Apr 2008.
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Gas detection and gas sensing based on hollow core photonic bandgap fiber (HC-PBF) is a very promising technique due to the long interaction light-gas lengths that are achievable. However, long path-lengths also imply higher gas filling times of the hollow fiber and higher response times of the detection systems what can constitute a serious practical inconvenience. In this paper, the high sensitivity is maintained but the sensor response time is reduced by using multiple coupling fiber gaps. The results and conclusions extracted from a systematic experimental study (comparing the spectra and filling time of different HC-PBF lengths and different number of coupling gaps) are presented and discussed. Finally, the maximum number of gaps allowed in the system is modelled.
|Item Type:||Conference or Workshop Item (Paper)|
|Subjects:||Q Science > QC Physics
T Technology > TK Electrical engineering. Electronics Nuclear engineering
|Divisions:||University Structure - Pre August 2011 > Optoelectronics Research Centre
|Date Deposited:||22 Mar 2010|
|Last Modified:||31 Mar 2016 13:09|
|RDF:||RDF+N-Triples, RDF+N3, RDF+XML, Browse.|
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