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Ultrasensitive measurement of temperature using an isopropanol-sealed optical microfiber coupler
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Paper Abstract

A highly sensitive temperature sensor based on an isopropanol-sealed optical microfiber coupler (OMC) is proposed and investigated. Isopropanol is a kind of material with high thermo-optic coefficient. By encapsulating the OMC into isopropanol environment, the OMC can be turned to a highly sensitive temperature sensor. Using this approach, we experimentally demonstrate a temperature sensor. By optimizing the waist diameter of the OMC, an ultrahigh temperature sensitivity of -5.89 nm/° has been achieved at the waist diameter of 2.2 μm in the range of 30-40°.

Paper Details

Date Published: 26 March 2019
PDF: 7 pages
Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 1093407 (26 March 2019); doi: 10.1117/12.2515410
Show Author Affiliations
Yundong Zhang, Harbin Institute of Technology (China)
Li Zhao, Harbin Institute of Technology (China)
Yunhao Chen, Harbin Institute of Technology (China)
Jinfang Wang, Shanghai Aerospace Control Technology Institute (China)


Published in SPIE Proceedings Vol. 10934:
Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology
Selim M. Shahriar; Jacob Scheuer, Editor(s)

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