Sensitivity optimization with cladding-etched long period fiber gratings at the dispersion turning point
Fecha
2016Autor
Versión
Acceso abierto / Sarbide irekia
Tipo
Artículo / Artikulua
Versión
Versión publicada / Argitaratu den bertsioa
Impacto
|
10.1364/OE.24.017680
Resumen
This work presents a refractive index sensor based on a long period fiber grating
(LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning
point at large wavelengths. The combination of these parameters results in an improved
sensitivity of 8734 nm/refractive index unit (RIU) for the LP0,3 mode in the 1400-1650
wavelength range. This value is similar to that obt ...
[++]
This work presents a refractive index sensor based on a long period fiber grating
(LPFG) made in a reduced cladding fiber whose low order cladding modes have the turning
point at large wavelengths. The combination of these parameters results in an improved
sensitivity of 8734 nm/refractive index unit (RIU) for the LP0,3 mode in the 1400-1650
wavelength range. This value is similar to that obtained with thin-film coated LPFGs, which
permits to avoid the coating deposition step. The numerical simulations are in agreement with
the experimental results. [--]
Materias
Fiber optics sensors,
Fiber Bragg gratings,
Fibers, single-mode
Editor
Optical Society of America
Publicado en
Optics Express, Vol. 24, Issue 16, pp. 17680-17685 (2016)
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
This work was supported in part by the Spanish Ministry of Education and Science-FEDER
TEC2013-43679-R. J.L. Cruz also acknowledges financial support of project TEC2013-46643-C2-1-R, and the Generalitat Valenciana project PROMETEOII/2014/072.