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Volume 18
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10.3390/s18093115
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Review

Fibre Bragg Grating Based Strain Sensors: Review of Technology and Applications

by
Carlo Edoardo Campanella
1,2,*,
Antonello Cuccovillo
2,
Clarissa Campanella
2,
Abdulkadir Yurt
2 and
Vittorio M. N. Passaro
1,*
1
Photonics Research Group, Dipartimento di Ingegneria Elettrica e dell’Informazione, Politecnico di Bari, via E. Orabona n., 4, 70125 Bari, Italy
2
QOpSyS SRL, Via Matteotti 23, Gioia del Colle, 70023 Bari, Italy
*
Authors to whom correspondence should be addressed.
Sensors 2018, 18(9), 3115; https://doi.org/10.3390/s18093115
Submission received: 20 August 2018 / Revised: 11 September 2018 / Accepted: 12 September 2018 / Published: 15 September 2018
(This article belongs to the Special Issue Optical Waveguide Based Sensors)
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Abstract

Fibre Bragg grating (FBG) strain sensors are not only a very well-established research field, but they are also acquiring a bigger market share due to their sensitivity and low costs. In this paper we review FBG strain sensors with high focus on the underlying physical principles, the interrogation, and the read-out techniques. Particular emphasis is given to recent advances in highly-performing, single head FBG, a category FBG strain sensors belong to. Different sensing schemes are described, including FBG strain sensors based on mode splitting. Their operation principle and performance are reported and compared with the conventional architectures. In conclusion, some advanced applications and key sectors the global fibre-optic strain sensors market are envisaged, as well as the main market players acting in this field.
Keywords: optical devices; fibre Bragg grating; optical sensors optical devices; fibre Bragg grating; optical sensors

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MDPI and ACS Style

Campanella, C.E.; Cuccovillo, A.; Campanella, C.; Yurt, A.; Passaro, V.M.N. Fibre Bragg Grating Based Strain Sensors: Review of Technology and Applications. Sensors 2018, 18, 3115. https://doi.org/10.3390/s18093115

AMA Style

Campanella CE, Cuccovillo A, Campanella C, Yurt A, Passaro VMN. Fibre Bragg Grating Based Strain Sensors: Review of Technology and Applications. Sensors. 2018; 18(9):3115. https://doi.org/10.3390/s18093115

Chicago/Turabian Style

Campanella, Carlo Edoardo, Antonello Cuccovillo, Clarissa Campanella, Abdulkadir Yurt, and Vittorio M. N. Passaro. 2018. "Fibre Bragg Grating Based Strain Sensors: Review of Technology and Applications" Sensors 18, no. 9: 3115. https://doi.org/10.3390/s18093115

APA Style

Campanella, C. E., Cuccovillo, A., Campanella, C., Yurt, A., & Passaro, V. M. N. (2018). Fibre Bragg Grating Based Strain Sensors: Review of Technology and Applications. Sensors, 18(9), 3115. https://doi.org/10.3390/s18093115

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