Measurement of the degree of salinity of water with a fiber-optic sensor

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dc.contributor.authorEsteban Martínez, Óscar
dc.contributor.authorNavarrete Fernández, María Cruz
dc.contributor.authorGonzález Cano, Agustín
dc.contributor.authorBernabeu Martínez, Eusebio
dc.date.accessioned2023-06-20T19:05:55Z
dc.date.available2023-06-20T19:05:55Z
dc.date.issued1999-09-01
dc.description© Optical Society of America. We wish to thank to R. Alonso, C. Cosculluela, J. Pelayo, and F. Villuendas of the Department of Applied Physics, University of Zaragoza, Spain, for their support and for providing us with the sensors used for this work. This research has been supported by the European Union under Project SOFIE (spectroscopy using optical fibers in the marine environment), number MAS3-CT97-0157.
dc.description.abstractA fiber-optic sensor based on surface-plasmon resonance for the determination of the refractive index is used for measuring the degree of salinity of water. The transducing element consists of a multilayer structure deposited on a side-polished monomode optical fiber. Measuring the attenuation of the power transmitted by the fiber shows that a linear relation with the refractive index of the outer medium of the structure is obtained. The system is characterized by use of a varying refractive index obtained with a mixture of water and ethylene glycol. Experimental results show that the sensor can be used as a salinity-degree measurement device with environmental applications.
dc.description.departmentDepto. de Óptica
dc.description.facultyFac. de Ciencias Físicas
dc.description.refereedTRUE
dc.description.sponsorshipUnión Europea (UE)
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/26821
dc.identifier.citation1. J. Dankin, Optical Fiber Sensors (Artech House, Norwood, Mass., 1989). 2. S.-M. Tseng, C.-L. Chen, “Side-polished fibers”, Appl. Opt. 31, 3438–3447 (1992). 3. R. Alonso, F. Villuendas, J. Tornos, J. Pelayo, “New ‘in-line’ optical-fibre sensor based on surface plasmon excitation”, Sens. Actuators A 37–38, 187–192 (1993). 4. D. Marcuse, “Investigation of coupling between a fiber and an infinite slab”, J. Lightwave Technol. 7, 122–130 (1989). 5. A. Tz. Andreev, K. Panajotov, “Distributed single-mode fiber to single-mode planar waveguide coupler”, J. Lightwave Technol. 11, 1985–1989 (1993). 6. R. Alonso, “Estudio teórico y experimental de dispositivos ópticos basados en el acoplamiento entre el modo guiado por una fibra óptica y estructuras multicapa incluyendo medios metálicos”, Ph.D. dissertation (Universidad de Zaragoza, Spain, 1995). 7. K. S. Shifrin, Physical Optics of Ocean Water (American Institute of Physics, New York, 1988). 8. X. Quan, E. S. Fry, “Empirical equation for the index of refraction of seawater”, Appl. Opt. 34, 3477–3480 (1995).
dc.identifier.doi10.1364/AO.38.005267
dc.identifier.issn1559-128X
dc.identifier.officialurlhttp://dx.doi.org/10.1364/AO.38.005267
dc.identifier.relatedurlhttp://www.opticsinfobase.org
dc.identifier.urihttps://hdl.handle.net/20.500.14352/59242
dc.issue.number25
dc.journal.titleApplied Optics
dc.language.isoeng
dc.page.final5271
dc.page.initial5267
dc.publisherThe Optical Society Of America
dc.relation.projectIDSOFIE (MAS3-CT97-0157)
dc.rights.accessRightsopen access
dc.subject.cdu535
dc.subject.keywordOptics
dc.subject.ucmÓptica (Física)
dc.subject.unesco2209.19 Óptica Física
dc.titleMeasurement of the degree of salinity of water with a fiber-optic sensor
dc.typejournal article
dc.volume.number38
dspace.entity.typePublication
relation.isAuthorOfPublicationdcb68811-1dc9-4b0a-9d96-31fe85a121da
relation.isAuthorOfPublication8f013df5-4042-4b99-b639-1176bcb4d4ce
relation.isAuthorOfPublication.latestForDiscoverydcb68811-1dc9-4b0a-9d96-31fe85a121da
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