Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids | Zendy

Yuxuan Jiang | Zendy; Zaijin Fang | Zendy; Yanqiu Du | Zendy; Elfed Lewis | Zendy; Gerald Farrell | Zendy; Pengfei Wang | Zendy

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Highly sensitive temperature sensor using packaged optical microfiber coupler filled with liquids

Author(s) -

Yuxuan Jiang,

Zaijin Fang,

Yanqiu Du,

Elfed Lewis,

Gerald Farrell,

Pengfei Wang

Publication year - 2018

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.26.000356

Subject(s) - microfiber , materials science , repeatability , refractive index , capillary action , optics , optical fiber , sensitivity (control systems) , fiber optic sensor , temperature measurement , optoelectronics , response time , interferometry , fiber , composite material , electronic engineering , chemistry , physics , computer graphics (images) , chromatography , quantum mechanics , computer science , engineering

A novel temperature sensor based on a Teflon capillary encapsulated 2 × 2 optical microfiber coupler (OMC) filled with refractive index matching liquids is described. The sealed capillary and the filling liquid are demonstrated to enhance the temperature sensing performance, achieving a high temperature sensitivity of 5.3 nm/°C. To the best of our knowledge, the temperature sensor described in this article exhibits the highest sensitivity among the OMC structure based fiber optic temperature sensors. Experimental results also show that it has good repeatability along with a fast response time of 243 ms.

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