Fiber optic fabry-perot micro-displacement sensor based on low-cost polymer film

Gutierrez Rivera, Miguel
Almanee, M.
Rojas Laguna, R.
Jauregui Vázquez, Daniel
Garcia Mina, Diego Felipe
Sierra Hernández, Juan M.
Estudillo-Ayala, Julián Moisés
Rojas Laguna, Roberto

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Publication date

May 2020

DOI

10.1109/JSEN.2019.2944998

Publisher

Institute of Electrical and Electronics Engineers (IEEE)

Language

English

Abstract

This manuscript experimentally validates a thin-film polymer andmultimode fiber optic interaction-based low-cost optical fiber displacement sensor. The sensing setup is operated by deflecting a commerciallyMylar® polymer film using multimode optical fiber. The sensor exhibits a higher sensitivity of 24nm/μmand resolution of 41.6nm. The sensor’s analyses also demonstrate good polynomial approximation, with a maximal adjusted square of R = 0.9801, and high stability, in which minimal power (0.4dB-Hour) and wavelength (<2nm-Hour) variations are observed. Moreover, thermal experiments prove that the sensor has lower temperature traits (0.05μm/ C), and this parameter can be distinguished considering the wavelength shifting direction. The simpl...