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Proceedings Paper

Refractive index sensor using a Fabry-Perot cavity in polymer fiber
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Paper Abstract

The possibility of using polymer fiber as a refractive index sensor is presented. The sensor is based on a Fabry-Perot interferometer formed at the tip of the polymer fiber. The interference is granted due to reflections between a fiber Bragg grating and the fiber end-face. The sensor was characterized to refractive index changes at constant temperature using a fast Fourier transform analysis of the interference signal. A sensitivity of −1.94 RIU-1 was achieved with a resolution of 1 × 10-3 RIU and a cross sensitivity to temperature of 1 × 10-4 RIU/°C.

Paper Details

Date Published: 23 April 2017
PDF: 4 pages
Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 1032333 (23 April 2017); doi: 10.1117/12.2264714
Show Author Affiliations
Miguel F. S. Ferreira, INESC TEC (Portugal)
Univ. of Porto (Portugal)
Gabriela Statkiewicz-Barabach, Wroclaw Univ. of Science and Technology (Poland)
Dominik Kowal, Wroclaw Univ. of Science and Technology (Poland)
Pawel Mergo, Maria Curie-Sklodowska Univ. (Poland)
Waclaw Urbanczyk, Wroclaw Univ. of Science and Technology (Poland)
Orlando Frazão, INESC TEC (Portugal)
Univ. of Porto (Portugal)


Published in SPIE Proceedings Vol. 10323:
25th International Conference on Optical Fiber Sensors
Youngjoo Chung; Wei Jin; Byoungho Lee; John Canning; Kentaro Nakamura; Libo Yuan, Editor(s)

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