Optimization in nanocoated D-shaped optical fiber sensors
Fecha
2017Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1364/OE.25.010743
Resumen
Nanocoated D-shaped optical fibers have been proven as effective sensors. Here,
we show that the full width at half minimum (FWHM) of lossy mode resonance can be
reduced by optimizing the nanocoating width, thickness and refractive index. As a
counterpart, several resonances are observed in the optical spectrum for specific conditions.
These resonances are caused by multiple modes guided in t ...
[++]
Nanocoated D-shaped optical fibers have been proven as effective sensors. Here,
we show that the full width at half minimum (FWHM) of lossy mode resonance can be
reduced by optimizing the nanocoating width, thickness and refractive index. As a
counterpart, several resonances are observed in the optical spectrum for specific conditions.
These resonances are caused by multiple modes guided in the nanocoating. By optimizing the
width of the coating and the imaginary part of its refractive index, it is possible to isolate one
of these resonances, which allows one to reduce the full width at half minimum of the device
and, hence, to increase the figure of merit. Moreover, it is even possible to avoid the need of a
polarizer by designing a device where the resonance bands for TE and TM polarization are
centered at the same wavelength. This is interesting for the development of optical filters and
sensors with a high figure of merit. [--]
Materias
Fiber optics sensors,
Thin films,
Waveguides
Editor
Optical Society of America
Publicado en
Optics Express Vol. 25, Issue 10, pp. 10743-10756 (2017)
Departamento
Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica y Electrónica /
Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektrikoa eta Elektronikoa Saila /
Universidad Pública de Navarra/Nafarroako Unibertsitate Publikoa. Institute of Smart Cities - ISC
Versión del editor
Entidades Financiadoras
Spanish Ministry of Education and Science-FEDER (TEC2013-43679-R, TEC2016-78047-
R); Government of Navarra Health Department (64/2015, 72/2015); Government of Navarra
2016/PI008.