Lazaro, J.M., Cubillas, A.M., Silva-Lopez, M., Conde, O.M., Petrovich, M. and López-Higuera, J.M.
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.
Full text not available from this repository.
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.
Actions (login required)