Monitoring multiple interferometric sensors multiplexed in a single fiber loop mirror

D. Leandro; M. Bravo; A. Ortigosa; M. Lopez-Amo

doi:10.1117/12.2194518

28 September 2015 Monitoring multiple interferometric sensors multiplexed in a single fiber loop mirror

D. Leandro, M. Bravo, A. Ortigosa, M. Lopez-Amo

Proceedings Volume 9634, 24th International Conference on Optical Fibre Sensors; 963418 (2015) https://doi.org/10.1117/12.2194518
Event: International Conference on Optical Fibre Sensors (OFS24), 2015, Curitiba, Brazil

Abstract

Three HiBi PCF sections have been multiplexed and monitored as strain sensors in a single fiber loop mirror (FLM) interferometer. The strain applied to each fiber has been measured without crosstalk by using the fast Fourier transform analysis. This study enhances the multiplexing capability in FLM and improves previous results, where a maximum of two fiber section were multiplexed in a single multi-section FLM. The HiBi fibers are spliced together with an angle offset given by the theoretical analysis of the interference. Consequently, just one polarization controller is needed in the system, which greatly simplifies the operation of the system.

Citation Download Citation

D. Leandro, M. Bravo, A. Ortigosa, and M. Lopez-Amo "Monitoring multiple interferometric sensors multiplexed in a single fiber loop mirror", Proc. SPIE 9634, 24th International Conference on Optical Fibre Sensors, 963418 (28 September 2015); https://doi.org/10.1117/12.2194518

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