Novel Compact and low-Cost Ultraweak Fabry-Perot Interferometer as a Highly Sensitive Refractive Index Sensor


A novel compact refractive index (RI) sensor based on an ultra-weak intrinsic fiber Fabry-Perot interferometer (FPI) is proposed and demonstrated, which is simply fabricated by splicing a tiny section of thin-core fiber to a single-mode fiber. Such an FPI exhibits an average RI sensitivity of 240dB/RIU over a wide RI range of 1.3326-1.4305, with a maximum sensitivity of 1110.7dB/RIU at the RI of 1.4305. In addition, the FPI can also achieve the simultaneous measurement of the RI and temperature.

Publication DOI:
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: ©2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See for more information.
Uncontrolled Keywords: Fabry-Perot interference,fiber fusion,high sensitivity,no temperature crosstalk.,Optical fiber,refractive index sensing,Atomic and Molecular Physics, and Optics,Electrical and Electronic Engineering
Publication ISSN: 1943-0655
Last Modified: 13 May 2024 07:28
Date Deposited: 25 Oct 2019 09:14
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Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
https://ieeexpl ... ocument/7995042 (Publisher URL)
PURE Output Type: Article
Published Date: 2017-10-01
Published Online Date: 2017-07-28
Accepted Date: 2017-07-24
Authors: Chen, Pengcheng
Shu, Xuewen
Cao, Haoran



Version: Published Version

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