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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 At 19th International Conference on Optical Fibre Sensors (OFS19). 14 - 18 Apr 2008.

Record type: Conference or Workshop Item (Paper)


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.

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Published date: 2008
Venue - Dates: 19th International Conference on Optical Fibre Sensors (OFS19), 2008-04-14 - 2008-04-18


Local EPrints ID: 76326
PURE UUID: 53d0e3df-d358-4d15-b9cb-a72f58a87fb1

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Date deposited: 22 Mar 2010
Last modified: 18 Jul 2017 23:40

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Author: J.M. Lazaro
Author: A.M. Cubillas
Author: M. Silva-Lopez
Author: O.M. Conde
Author: M. Petrovich
Author: J.M. López-Higuera

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