Hybrid BOTDA/FBG sensor for discrete dynamic and distributed static strain/temperature measurements

Tiziano Nannipieri; Mohammad Taki; Farhan Zaidi; Alessandro Signorini; Marcelo A. Soto; Gabriele Bolognini; Fabrizio Di Pasquale

doi:10.1117/12.970302

17 October 2012 Hybrid BOTDA/FBG sensor for discrete dynamic and distributed static strain/temperature measurements

Tiziano Nannipieri, Mohammad Taki, Farhan Zaidi, Alessandro Signorini, Marcelo A. Soto, Gabriele Bolognini, Fabrizio Di Pasquale

Author Affiliations +

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 842121 (2012) https://doi.org/10.1117/12.970302
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

We propose and experimentally demonstrate a hybrid fiber optic sensing technique that effectively combines Brillouin optical time-domain analysis and a time-domain multiplexing interrogation technique for Fiber Bragg Gratings (FBGs). The highly-integrated proposed scheme employs broadband apodized low-reflectivity FBGs with a single optical source and a shared receiver block, allowing for simultaneous measurements of distributed static and discrete dynamic temperature and strain, over the same sensing fiber.

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Tiziano Nannipieri, Mohammad Taki, Farhan Zaidi, Alessandro Signorini, Marcelo A. Soto, Gabriele Bolognini, and Fabrizio Di Pasquale "Hybrid BOTDA/FBG sensor for discrete dynamic and distributed static strain/temperature measurements", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 842121 (17 October 2012); https://doi.org/10.1117/12.970302

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