Simultaneous detection of humidity and temperature through an adhesive based Fabry–Pérot cavity combined with polymer fiber Bragg grating

In this work we report the fabrication of a dual fiber sensor composed of an adhesive based Fabry–Pérot cavity combined with a polymer fiber Bragg grating (PFBG), for the simultaneous detection of humidity and temperature. The Fabry–Pérot structure was fabricated through a modified version of the se...

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Bibliographic Details
Published in:Optics and lasers in engineering 2019-03, Vol.114, p.37-43
Main Authors: Oliveira, Ricardo, Bilro, Lúcia, Marques, Thiago H.R., Cordeiro, Cristiano M.B., Nogueira, Rogério
Format: Article
Language:English
Subjects:
Fabry–Pérot
Fiber Bragg grating
Fiber optics sensor
Polymers
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Summary:In this work we report the fabrication of a dual fiber sensor composed of an adhesive based Fabry–Pérot cavity combined with a polymer fiber Bragg grating (PFBG), for the simultaneous detection of humidity and temperature. The Fabry–Pérot structure was fabricated through a modified version of the self-written waveguide technology, by employing a no-core fiber, while the PFBG was inscribed in a flat-sides microstructured polymer fiber (mPOF) using the phase mask technology through the 248 nm UV laser. The combination of these two polymer based technologies allow an easy fabrication and provide an efficient route for the simultaneous detection of humidity and temperature with high resolution.
ISSN:0143-8166
1873-0302
DOI:10.1016/j.optlaseng.2018.10.007