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Multi-parameter optical gauge based on mode coupling effect in asymmetric index multi-core fibres

Multi-parameter optical gauge based on mode coupling effect in asymmetric index multi-core fibres
Multi-parameter optical gauge based on mode coupling effect in asymmetric index multi-core fibres

An optical gauge based on coupled multi-core fiber is proposed and experimentally demonstrated. By using direct laser writing to selectively break the fiber index profile symmetry, asymmetric mode coupling between cores is introduced. This allows to fabricate optical gauges with the ability to detect and differentiate different types of deformation in structures using just a single sensor. The fabricated optical gauges are compared with calibrated commercial gauges and fiber Bragg gratings as strain, vibration and curvature gauge. The tests indicate superior performance of this novel optical gauge over the commercially available sensors and offer the highest sensitivities. The proposed technology could be key to the fabrication of new fiber-based sensing devices with more capabilities and better features than previously achieved.

Mode coupling effect, Multicore fibre-based sensors, Multiparameter sensor, Optical fibre-based sensors, Optical gauges
0143-8166
Arrizabalaga, Oskar
5ce39e54-7ad0-4271-9252-291a96092b41
Sun, Qi
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Lee, Timothy
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Zubia, Joseba
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Pascual, Javier Velasco
882559ad-dad2-47db-9008-c0daf94bb5ef
Ocariz, Idurre Sáez De
b7451341-c09d-4f22-b731-adc649f197ae
Schülzgen, Axel
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Amezcua-Correa, Rodrigo
46528fd3-93c3-4ce9-b478-f0fbf515e232
Brambilla, Gilberto
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Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b
Arrizabalaga, Oskar
5ce39e54-7ad0-4271-9252-291a96092b41
Sun, Qi
66e3c3df-5a60-4927-a47a-c4f6020c2fc0
Lee, Timothy
beb3b88e-3e5a-4c3f-8636-bb6de8040fcc
Zubia, Joseba
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Pascual, Javier Velasco
882559ad-dad2-47db-9008-c0daf94bb5ef
Ocariz, Idurre Sáez De
b7451341-c09d-4f22-b731-adc649f197ae
Schülzgen, Axel
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Amezcua-Correa, Rodrigo
46528fd3-93c3-4ce9-b478-f0fbf515e232
Brambilla, Gilberto
815d9712-62c7-47d1-8860-9451a363a6c8
Beresna, Martynas
a6dc062e-93c6-46a5-aeb3-8de332cdec7b

Arrizabalaga, Oskar, Sun, Qi, Lee, Timothy, Zubia, Joseba, Pascual, Javier Velasco, Ocariz, Idurre Sáez De, Schülzgen, Axel, Amezcua-Correa, Rodrigo, Brambilla, Gilberto and Beresna, Martynas (2022) Multi-parameter optical gauge based on mode coupling effect in asymmetric index multi-core fibres. Optics and Lasers in Engineering, 154, [107047]. (doi:10.1016/j.optlaseng.2022.107047).

Record type: Article

Abstract

An optical gauge based on coupled multi-core fiber is proposed and experimentally demonstrated. By using direct laser writing to selectively break the fiber index profile symmetry, asymmetric mode coupling between cores is introduced. This allows to fabricate optical gauges with the ability to detect and differentiate different types of deformation in structures using just a single sensor. The fabricated optical gauges are compared with calibrated commercial gauges and fiber Bragg gratings as strain, vibration and curvature gauge. The tests indicate superior performance of this novel optical gauge over the commercially available sensors and offer the highest sensitivities. The proposed technology could be key to the fabrication of new fiber-based sensing devices with more capabilities and better features than previously achieved.

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Accepted/In Press date: 14 March 2022
e-pub ahead of print date: 22 March 2022
Published date: July 2022
Additional Information: This work has been funded in part by the Fondo Europeo de Desarrollo Regional (FEDER), in part by the Ministerio de Ciencia, Innovación y Universidades under projects RTI2018-094669-B-C31 in part by the GobiernoVasco/Eusko Jaurlaritza ELKARTEK KK-2021/00092 and ELKARTEK KK-2021/00082. The authors also acknowledge UKRI for partial support through research grants EP/S013776/1; NE/S012877/1; NE/T005890/1
Keywords: Mode coupling effect, Multicore fibre-based sensors, Multiparameter sensor, Optical fibre-based sensors, Optical gauges

Identifiers

Local EPrints ID: 471063
URI: http://eprints.soton.ac.uk/id/eprint/471063
ISSN: 0143-8166
PURE UUID: 3da8a839-ed59-4bb5-a76f-34851c04d775
ORCID for Qi Sun: ORCID iD orcid.org/0000-0002-0850-5463
ORCID for Timothy Lee: ORCID iD orcid.org/0000-0001-9665-5578
ORCID for Gilberto Brambilla: ORCID iD orcid.org/0000-0002-5730-0499

Catalogue record

Date deposited: 25 Oct 2022 16:38
Last modified: 24 Nov 2022 02:37

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Contributors

Author: Oskar Arrizabalaga
Author: Qi Sun ORCID iD
Author: Timothy Lee ORCID iD
Author: Joseba Zubia
Author: Javier Velasco Pascual
Author: Idurre Sáez De Ocariz
Author: Axel Schülzgen
Author: Rodrigo Amezcua-Correa

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