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

Yundong Zhang; Li Zhao; Yunhao Chen; Jinfang Wang

doi:10.1117/12.2515410

26 March 2019 Ultrasensitive measurement of temperature using an isopropanol-sealed optical microfiber coupler

Yundong Zhang, Li Zhao, Yunhao Chen, Jinfang Wang

Proceedings Volume 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology; 1093407 (2019) https://doi.org/10.1117/12.2515410
Event: SPIE OPTO, 2019, San Francisco, California, United States

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°.

Citation Download Citation

Yundong Zhang, Li Zhao, Yunhao Chen, and Jinfang Wang "Ultrasensitive measurement of temperature using an isopropanol-sealed optical microfiber coupler", Proc. SPIE 10934, Optical, Opto-Atomic, and Entanglement-Enhanced Precision Metrology, 1093407 (26 March 2019); https://doi.org/10.1117/12.2515410

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