Wavelength and phase detection based SMS fiber sensors optimized with etching and nanodeposition
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión aceptada / Onetsi den bertsioa
Identificador del proyecto
ES/1PE/TEC2016-78047-R
Impacto
|
10.1109/JLT.2017.2719923
Resumen
The development of an optical fiber refractometer by
hydrogen fluoride etching and sputtering deposition of a thin-film
of indium tin oxide on a single-mode-multimode-single-mode fiber
structure has been analyzed with the aim of improving the sensitivity to the changes of the refractive index (RI) of the external
medium. The device is sensitive to the RI changes of the surrounding medium, whi ...
[++]
The development of an optical fiber refractometer by
hydrogen fluoride etching and sputtering deposition of a thin-film
of indium tin oxide on a single-mode-multimode-single-mode fiber
structure has been analyzed with the aim of improving the sensitivity to the changes of the refractive index (RI) of the external
medium. The device is sensitive to the RI changes of the surrounding medium, which can be monitored by tracking the spectral changes of an attenuation band or with a fast Fourier transform
(FFT) analysis. By using an optical spectrum analyzer combined
with a simple FFT measurement technique, the simultaneous real
time monitoring is achieved. The results show that the sensitivity
depends on the thin-film thickness. A maximum of 1442 nm/RIU
(refractive index unit) in the 1.32–1.35RIUrange has been attained.
In addition, a theoretical analysis has been performed, where simu
lationsmatched with the experimental results. As a practical appli
cation of the developed optical fiber structure, a °Brix (°Bx) sensor
has been implemented with a sensitivity of 2.13 nm/°Bx and 0.25
rad/°Bx respectively for wavelength and phase shift detection. [--]
Materias
Etching,
Optical fiber sensor,
Refractive index,
Single-mode–multimode–single-mode (SMS),
Thin-films
Editor
IEEE
Publicado en
Journal of Lightwave Technology, Vol. 35, No. 17, Sepember 1, 2017
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila
Versión del editor
Entidades Financiadoras
This work was supported in part by the Agencia Estatal de Investigacion, in part by Fondo Europeo de Desarrollo Regional (TEC2016-78047-R), in part
by the Government of Navarre through its projects with references: 2016/PI008,
2016/PC025, and 2016/PC026, and in part by the Colombian Administrative
Department of Science, Technology and Innovation—Colciencias, through the
Program for national doctorates, calling 617 of 2013.