Fiber-tip polymer filled probe for high-sensitivity temperature sensing and polymer refractometers | Zendy

Haitao Gao | Zendy; Danping Xu | Zendy; Yongyi Ye | Zendy; Yanan Zhang | Zendy; Jian Shen | Zendy; Chaoyang Li | Zendy

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Fiber-tip polymer filled probe for high-sensitivity temperature sensing and polymer refractometers

Author(s) -

Haitao Gao,

Danping Xu,

Yongyi Ye,

Yanan Zhang,

Jian Shen,

Chaoyang Li

Publication year - 2022

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.449852

Subject(s) - materials science , fusion splicing , polymer , refractometer , refractive index , optics , optical fiber , interferometry , fabry–pérot interferometer , photonic crystal fiber , fabrication , core (optical fiber) , sensitivity (control systems) , optoelectronics , composite material , wavelength , electronic engineering , medicine , physics , alternative medicine , pathology , engineering

A compact and robust Fabry-Perot interferometer (FPI) based on polymer core is proposed and experimentally demonstrated. The fabrication is low-cost and has simple processes, including fusion splicing and polymer injection. Its characteristic is that the polymer fills the entire capillary core, which is easy to demodulate, and provides a good platform for the refractive index measurement of the polymer after curing. The experimental result shows a linear temperature sensitivity of 1226.64 pm/°C between 39°C and 54°C. Furthermore, we also used the Vernier effect to improve the temperature sensitivity as high as -15.617 nm/°C. The proposed FPI structure provides potential application in the research of sensors and polymer optical fibers.

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