Optical fiber vacuum sensor based on modal interferometer and PDMS coating
Fecha
2019Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Contribución a congreso / Biltzarrerako ekarpena
Versión
Versión aceptada / Onetsi den bertsioa
Identificador del proyecto
ES/1PE/TEC2016-79367 ES/1PE/TEC2016-78047-R
Impacto
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10.1109/SENSORS43011.2019.8956488
Resumen
This work studies the behavior of polydimethylsiloxane (PDMS) as a transducer for optical vacuum pressure measurements. The optical structure chosen for this device is a modal interferometer achieved by splicing a coreless multimode optical fiber between two single mode fibers. Then, an etching process is applied to the obtained device, in order to decrease the diameter of the fiber and increase ...
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This work studies the behavior of polydimethylsiloxane (PDMS) as a transducer for optical vacuum pressure measurements. The optical structure chosen for this device is a modal interferometer achieved by splicing a coreless multimode optical fiber between two single mode fibers. Then, an etching process is applied to the obtained device, in order to decrease the diameter of the fiber and increase the sensitivity. Finally, the fiber is coated by dip-coating with a layer of PDMS, which changes its volume with pressure changes. The device has been studied in the 1x10(-3) mbar to 10 mbar range with a wavelength shift of 4 nm. A maximum sensitivity of 35 nm/mbar was obtained. The simple fabrication process, which can be applied to more sensitive structures, suggest that PDMS can be a good choice for the development of optical fiber vacuum sensors. [--]
Materias
Optical fiber,
Modal interferometer,
Vacuum sensor,
Polydimethylsiloxane,
PDMS
Editor
IEEE
Publicado en
2019 IEEE Sensors, Montreal, QC, Canada, 2019, pp. 1-4
Notas
Trabajo presentado a la 18th IEEE Sensors Conference. Montreal, 2019
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 was supported by Spanish Agencia Estatal de Investigacion (AEI). Fondo Europeo de Desarrollo Regional (FEDER) (TEC2016-79367-C2-2-R and TEC2016-78047-R).