TY - JOUR
T1 - Fabrication and performance evaluation of reflectorless refractive index fiber optic sensors using etched enhanced backscattering fibers
AU - Aitkulov, A.
AU - Sypabekova, M.
AU - Molardi, C.
AU - Blanc, W.
AU - Tosi, D.
N1 - Publisher Copyright:
© 2020 Elsevier Ltd
PY - 2021/2
Y1 - 2021/2
N2 - We propose and evaluate a technique for the fabrication and interrogation of fiber-optic refractive index (RI) sensors based on etched MgO-based nanoparticle doped fibers. The discussed method does not require to inscribe a reflective element into the fiber. Instead, light backscattered by the fiber can give sufficient information that is necessary for detection, by performing the cross-correlation of Rayleigh scatter signatures in the etched zones. The performance of the sensor is monitored using distributed sensing, which allows to interrogate several points along the length of the fiber. The sensitivities of several etched fibers are compared. The largest sensitivity that has been achieved is 45.95 nm/RIU (RI units), with the possibility of implementing temperature compensation.
AB - We propose and evaluate a technique for the fabrication and interrogation of fiber-optic refractive index (RI) sensors based on etched MgO-based nanoparticle doped fibers. The discussed method does not require to inscribe a reflective element into the fiber. Instead, light backscattered by the fiber can give sufficient information that is necessary for detection, by performing the cross-correlation of Rayleigh scatter signatures in the etched zones. The performance of the sensor is monitored using distributed sensing, which allows to interrogate several points along the length of the fiber. The sensitivities of several etched fibers are compared. The largest sensitivity that has been achieved is 45.95 nm/RIU (RI units), with the possibility of implementing temperature compensation.
KW - Distributed sensing
KW - Nanoparticle-doped fiber
KW - Optical backscatter reflectometry
KW - Optical fiber sensor
KW - Refractive index sensor
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U2 - 10.1016/j.measurement.2020.108874
DO - 10.1016/j.measurement.2020.108874
M3 - Article
AN - SCOPUS:85098163464
SN - 0263-2241
VL - 172
JO - Measurement: Journal of the International Measurement Confederation
JF - Measurement: Journal of the International Measurement Confederation
M1 - 108874
ER -