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A quasi-distributed temperature sensor interrogated by optical frequency-domain reflectometer

By Kıvılcım Yüksel, Patrice Mégret and Marc Wuilpart


This paper presents the analysis of a quasi-distributed sensor based on the concatenation of identical low-reflective fiber Bragg gratings. We experimentally demonstrated a temperature sensor using ten cascaded gratings which are interrogated by an optical frequency domain reflectometer. Repeatability measurements highlighted a standard deviation on the measured temperature smaller than 1.5 °C. A complete demonstration of mathematical formulas which are used to obtain the temperature information is also provided. © 2011 IOP Publishing Ltd.Fonds de la Recherche Scientifique-Cr´edit aux Chercheurs (FNRS) and Interuniversity Attraction Pole IAP 6/1

Topics: Frequency domain analysis, Fiber Bragg gratings (FBGs), Natural frequencies, Temperature sensors, Mathematical formulas
Publisher: IOP Publishing
Year: 2011
DOI identifier: 10.1088/0957-0233/22/11/115204
OAI identifier:
Provided by: DSpace@IZTECH

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