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Sensors 2017, 17(12), 2773; doi:10.3390/s17122773

Study of Optical Fiber Sensors for Cryogenic Temperature Measurements

1
Institute of Smart Cities and Department of Electrical and Electronic Engineering, Campus de Arrosadia S/N, Universidad Pública de Navarra, Pamplona E-31006, Spain
2
Department of Physics, Universidad Pública de Navarra, Pamplona 31006, Spain
3
Institute for Advanced Materials (INAMAT), Universidad Pública de Navarra, Pamplona 31006, Spain
4
Xlim, Fibre Photonics Department, UMR CNRS/University of Limoges 7252, 87060 Limoges Cedex, France
*
Author to whom correspondence should be addressed.
Received: 30 October 2017 / Revised: 27 November 2017 / Accepted: 28 November 2017 / Published: 30 November 2017
(This article belongs to the Section Physical Sensors)
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Abstract

In this work, the performance of five different fiber optic sensors at cryogenic temperatures has been analyzed. A photonic crystal fiber Fabry-Pérot interferometer, two Sagnac interferometers, a commercial fiber Bragg grating (FBG), and a π-phase shifted fiber Bragg grating interrogated in a random distributed feedback fiber laser have been studied. Their sensitivities and resolutions as sensors for cryogenic temperatures have been compared regarding their advantages and disadvantages. Additionally, the results have been compared with the given by a commercial optical backscatter reflectometer that allowed for distributed temperature measurements of a single mode fiber. View Full-Text
Keywords: cryogenic temperature; thermometry; interferometric sensor; optical fiber sensor; random distributed feedback fiber lasers; optical backscatter reflectometer cryogenic temperature; thermometry; interferometric sensor; optical fiber sensor; random distributed feedback fiber lasers; optical backscatter reflectometer
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

De Miguel-Soto, V.; Leandro, D.; Lopez-Aldaba, A.; Beato-López, J.J.; Pérez-Landazábal, J.I.; Auguste, J.-L.; Jamier, R.; Roy, P.; Lopez-Amo, M. Study of Optical Fiber Sensors for Cryogenic Temperature Measurements. Sensors 2017, 17, 2773.

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