Multichannel fiber Bragg grating for temperature field monitoring

Abstract

We demonstrate a multichannel fiber Bragg grating (MC-FBG) based distributed temperature field sensor with millimeter-order spatial resolution. The MC-FBG was designed by using the layer peeling (LP) algorithm with a tailored group delay characteristic and fabricated using seamless UV-inscription. We have achieved a 21-channel MC-FBG with 0.2 nm bandwidth of each channel and 0.5 nm channel gap. The sensor was tested by using a temperature field distribution. Experimental results show that the sensor had a spatial resolution of 3 mm and could measure a maximum temperature gradient of 7.85 °C/mm.

Publication DOI: https://doi.org/10.1364/OE.27.000461
Divisions: College of Engineering & Physical Sciences
College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > School of Informatics and Digital Engineering > Electrical and Electronic Engineering
Additional Information: © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Uncontrolled Keywords: Fibre Bragg grating,sensing temperature,sensor grating,Atomic and Molecular Physics, and Optics
Publication ISSN: 1094-4087
Full Text Link:
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Article
Published Date: 2019-01-07
Published Online Date: 2019-01-07
Accepted Date: 2018-12-21
Authors: Gbadebo, Adenowo (ORCID Profile 0000-0003-2674-8669)
Turitsyna, Elena (ORCID Profile 0000-0003-1756-362X)
Williams, John A (ORCID Profile 0000-0002-9554-6633)
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Sun, Y.
Zhang, W.
Yan, Zhijun
Sun, Q.
Liu, D

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