Please use this identifier to cite or link to this item: http://repositorio.inesctec.pt/handle/123456789/7275
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dc.contributor.authorMarta Sofia Ferreiraen
dc.contributor.authorBierlich,Jen
dc.contributor.authorUnger,Sen
dc.contributor.authorSchuster,Ken
dc.contributor.authorJosé Luís Santosen
dc.contributor.authorOrlando Frazãoen
dc.date.accessioned2018-01-23T13:25:25Z-
dc.date.available2018-01-23T13:25:25Z-
dc.date.issued2014en
dc.identifier.urihttp://repositorio.inesctec.pt/handle/123456789/7275-
dc.identifier.urihttp://dx.doi.org/10.1109/jlt.2014.2335272en
dc.description.abstractAn interferometric tip sensor based on the post-process of a special design double-cladding optical fiber is proposed. Due to the sensing head design, it is sensitive to environmental variations. In order to analyze this effect, the sensing head is subjected to temperature variations both in liquid and gas (at 1 atm). Comparing the two signals, it is possible to discriminate the contribution of the liquid refractive index variation with temperature. Not only the amplitude of the signal varies with the surrounding medium, but also the phase of the interferometric pattern alters. This is due to the presence of a thin diaphragm at the end face of the fiber structure turning the sensing head in a three wave interferometric device. An indirect measurement of the water refractive index is performed, by subjecting the sensing head to temperature variations in air and water. Even though the sensitivities obtained are lower than the ones reported in the literature, it should be highlighted that there is no core exposition of the fiber to the external medium. The sensor is easy to fabricate, robust, and reproducible.en
dc.languageengen
dc.relation5370en
dc.relation4061en
dc.relation347en
dc.rightsinfo:eu-repo/semantics/openAccessen
dc.titleOptical Phase Refractometer Based on Post-Processed Interferometric Tip Sensorsen
dc.typearticleen
dc.typePublicationen
Appears in Collections:Non INESC TEC publications - Articles in International Journals

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