期刊
MEASUREMENT
卷 178, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.measurement.2021.109391
关键词
Microfiber sensor; Temperature sensor; Integrated optics; Fiber optics
资金
- National Key R&D Program of China [2019YFB2006001]
- Fundamental Research Funds for Central Universities [N2004007]
- Hebei Natural Science Foundation [F2020501040]
This paper constructed a Fabry-Pe'rot interferometer microprobe based on microfiber taper and hollow microfiber cone cavity, achieving a temperature sensitivity of up to 2.41 nm/ degrees C. The stable and compact temperature-sensitive probe demonstrated excellent sensing performance, pushing forward the development of wearable or implantable sensors.
In this paper, a Fabry-Pe ' rot interferometer microprobe was constructed based on microfiber taper and hollow microfiber cone cavity. The interference cavity length of the Fabry-Pe ' rot structure can be flexibly changed by moving the microfiber taper in the hollow microfiber. Polydimethylsiloxane solution was filled into the air cavity of the Fabry-Pe ' rot interferometer to build a Fabry-Pe ' rot temperature-sensitive microprobe with a stable structure by coaxially fixing the microfiber taper in the hollow fiber. The temperature sensitivity reached up to 2.41 nm/ degrees C. The triple-repeated measurements and stability tests were experimentally verified with an excellent sensing performance. This small, compact, and end-sealed temperature-sensitive probe will push forward the development of wearable or implantable sensors.
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