Multicore fiber sensors for strain measurement towards traffic monitoring
Fecha
2023Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión publicada / Argitaratu den bertsioa
Identificador del proyecto
Impacto
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10.1117/12.2678405
Resumen
In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the
ultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on the monitoring of the
phase shift difference accumulated between the supermodes of the structure of the multicore segment in a full round trip.
The strain characterization for b ...
[++]
In this work, two new interferometric sensors based on multicore optical fibers for the measurement of strain with the
ultimate goal of traffic monitoring are presented. The operating principle of each sensor relied on the monitoring of the
phase shift difference accumulated between the supermodes of the structure of the multicore segment in a full round trip.
The strain characterization for both sensors resulted in a linear response, with sensitivities of -4.073·10-3 rad/με and -
4.389·10-3 rad/με for the aligned and V-shaped cases respectively, and one-hour instabilities below 4.6·10-3 rad with a 95%
confidence level. These results suggest its feasibility in applications requiring high sensitivities over very wide strain
ranges, such as heavy-vehicle traffic monitoring. To corroborate the hypothesis, both sensors were integrated into the
pavement and their response to the traffic was analyzed. [--]
Materias
Fast Fourier Transform,
Few-mode fiber,
Fiber sensor,
Multicore fiber,
Traffic monitoring
Editor
SPIE
Publicado en
Wuilpart, M.; Caucheteur, C. (Eds.). European Workshop on Optical Fibre Sensors (EWOFS 2023). Bellingham: SPIE; 2023. p.73-76 978-1-5106-6500-2
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa, Elektronikoa eta Telekomunikazio Ingeniaritza Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
This work is part of the projects PID2019-107270RB-C02, funded by MCIN/AEI/10.13039/501100011033 and FEDER
“A way to make Europe”, and PDC2021-121172-C01 funded by MCIN/ AEI/10.13039/501100011033 and European
Union “Next generationEU”/PTR and the project PJUPNA06-2022 from the Public University of Navarre and the Beatriz
Galindo BEAGAL18/00116 grant funded by MICINN.