Distributed fluorescent optical fiber proximity sensor: Towards a proof of concept

Galatu¿, R. ; Faragó, P. ; Miluski, P. ; Valles, J.A. (Universidad de Zaragoza)

Resumen: Fluorescent fibers are optical fibers which emit light as a response to an incident phenomenon, usually an incident light. Operation depends on the doping dyes, which determine specific fluorescence and optical characteristics useful in the development of optical sensors. In this work we propose a low-cost distributed proximity sensor implemented using a red fluorescent fiber, to provide a security option for a surface plasmon resonance system. Operation of the proposed sensor relies on having the incident illumination intensity varied by the presence or absence of an obstacle in the vicinity of the sensing element. This will influence the radiated fluorescence accordingly. The proposed setup for the implementation of the optical proximity sensor assumes having a high brightness LED deployed for axial fiber illumination and a blue LED for side illumination. Electronic processing then accounts for gain and digitization. Measurement results of the prototype validate the proposed concept.

Idioma: Inglés

DOI: 10.1016/j.saa.2018.02.044

Año: 2018

Publicado en: SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 198 (2018), 7-18
ISSN: 1386-1425

Factor impacto JCR: 2.931 (2018)

Categ. JCR: SPECTROSCOPY rank: 9 / 41 = 0.22 (2018) - Q1 - T1

Factor impacto SCIMAGO: 0.574 - Analytical Chemistry (Q2) - Spectroscopy (Q2) - Instrumentation (Q2) - Atomic and Molecular Physics, and Optics (Q2)

Financiación: info:eu-repo/grantAgreement/EUR/COST-Action/MP1401-MPNS

Tipo y forma: (PostPrint)

Área (Departamento): Área Óptica (Dpto. Física Aplicada)