Intrinsic Fabry-Pérot cavity sensor based on chemical etching of a multimode graded index fiber spliced to a single mode fiber

Paula A. R. Tafulo; O. Frazão; P. A. S. Jorge; F. M. Araújo

doi:10.1117/12.866336

8 September 2010 Intrinsic Fabry-Pérot cavity sensor based on chemical etching of a multimode graded index fiber spliced to a single mode fiber

Paula A. R. Tafulo, O. Frazão, P. A. S. Jorge, F. M. Araújo

Author Affiliations +

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 765311 (2010) https://doi.org/10.1117/12.866336
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

Abstract

An intrinsic Fabry-Pérot cavity for high temperature and strain measurement is presented. The in-fibre cavity is formed by a chemical etched graded index optical fiber spliced to a single mode fiber. The intrinsic sensor obtained shows high sensitivity to strain (6.2 pm/με) and rather low sensitivity to temperature (0.9 pm/°C), being suitable for applications as a strain gauge at high temperature.

Citation Download Citation

Paula A. R. Tafulo, O. Frazão, P. A. S. Jorge, and F. M. Araújo "Intrinsic Fabry-Pérot cavity sensor based on chemical etching of a multimode graded index fiber spliced to a single mode fiber", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 765311 (8 September 2010); https://doi.org/10.1117/12.866336

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