Optical strain sensor based on FPI micro-cavities produced by the fiber fuse effect

M. Fátima Domingues; Paulo Antunes; Nélia Alberto; Rita Frias; Rute A. S. Ferreira; Paulo André

doi:10.1117/12.2059645

2 June 2014 Optical strain sensor based on FPI micro-cavities produced by the fiber fuse effect

M. Fátima Domingues, Paulo Antunes, Nélia Alberto, Rita Frias, Rute A. S. Ferreira, Paulo André

Proceedings Volume 9157, 23rd International Conference on Optical Fibre Sensors; 91571Q (2014) https://doi.org/10.1117/12.2059645
Event: OFS2014 23rd International Conference on Optical Fiber Sensors, 2014, Santander, Spain

Abstract

In this work we present a cost effective strain sensor based on micro-cavities produced through the re-use of optical fibers destroyed by the catastrophic fuse effect. The strain sensor estimated sensitivity is 2.22 ±0.08 pm/μƐ. After the fuse effect, the damaged fiber becomes useless and, consequently, it is an economical solution for sensing proposes, when compared with the cavities produced using other complex methods. Also, the low thermal sensitivity is of great interest in several practical applications, allowing eluding cross-sensitivity with less instrumentation, and consequently less cost.

Citation Download Citation

M. Fátima Domingues, Paulo Antunes, Nélia Alberto, Rita Frias, Rute A. S. Ferreira, and Paulo André "Optical strain sensor based on FPI micro-cavities produced by the fiber fuse effect", Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571Q (2 June 2014); https://doi.org/10.1117/12.2059645

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