Regenerated Fibre Bragg Gratings have the potential for high-temperature monitoring. In this paper, the inscription of Fibre Bragg Gratings (FBGs) and the later regeneration process to obtain Regenerated Fiber Bragg Gratings ...
[EN] New optical fiber based spectroscopic tools open the possibility to develop more robust and efficient characterization experiments. Spectral filtering and light reflection have been used to produce compact and versatile ...
Hervás Peralta, Javier; Fernandez-Pousa, C.R.; Barrera Vilar, David; Pastor Abellán, Daniel; Sales Maicas, Salvador; Capmany Francoy, José(Institute of Electrical and Electronics Engineers (IEEE), 2015-06-01)
A technique is proposed to interrogate a distributed
photonic sensor composed of seven standard fiber Bragg gratings
in cascade. A microwave-modulated optical signal is launched into
an FBG cascade and subsequently ...
Berrio Valencia, Luis Humberto; Sales Maicas, Salvador; Barrera Vilar, David(Institute of Electrical and Electronics Engineers (IEEE), 2012-09)
The following paper presents a bend sensor that consists of three Bragg Gratings inside a Standard Fiber Optic for the characterization of the reflected wavelengths with respect to the radius of curvature in conditions of ...
[EN] This paper is focused on the characterization of a fiber Bragg grating (FBG) sensor interrogation system based on a fiber ring laser with a semiconductor optical amplifier as the gain medium, and an in-loop electro-optical ...
Ricchiuti, Amelia L.; Suárez Álvarez, Isaac; Barrera Vilar, David; Rodríguez Cantó, Pedro Javier; Fernandez-Pousa, Carlos R.; Abargues, Rafael; Sales Maicas, Salvador; Martinez-Pastor, Juan; Capmany Francoy, José(Institute of Electrical and Electronics Engineers (IEEE), 2014-02-15)
A novel scheme for the control of microwave signals carried at optical wavelengths by use of PbS colloidal quantum dots embedded in PMMA waveguides is presented. When these structures are pumped at wavelengths where PbS ...
Ricchiuti, Amelia Lavinia; Barrera Vilar, David; Urrutia Azcona, Aitor; Goicoechea Fernández, Javier; Arregui, Francisco J.; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers (IEEE), 2016-03-15)
A fiber optic liquid-level sensor based on a long period grating (LPG) is proposed and experimentally validated. The principle of operation is based on a technique used to analyze microwave photonics filters. A 4-cm-long ...
Khan, Fouzia; Barrera, David; Sales Maicas, Salvador; Misra, Sarthak(Elsevier, 2021-01-01)
[EN] This paper presents a technique to acquire measurements of curvature, twist and pose for two multi-core fibers; one with straight cores and the other with helical cores. Both the fibers have multiple fiber Bragg grating ...
Sartiano, Demetrio(Universitat Politècnica de València, 2021-02-15)
[ES] Las fibras ópticas son dispositivos muy utilizados en el campo de las telecomunicaciones desde su descubrimiento. En las últimas décadas, las fibras ópticas comenzaron a utilizarse como sensores fotónicos. Los primeros ...
Barrera Vilar, David(Universitat Politècnica de València, 2011-10-18)
En el campo de la ingeniería civil para poder analizar la seguridad y fiabilidad de las construcciones se hace necesaria la monitorización de las mismas mediante dispositivos sensores que permitan un control continuo de ...
Ferrer Alarcón, Jorge(Universitat Politècnica de València, 2014-03-07)
Diseño de un sistema de interrogación de bajo coste para sensores ópticos basados en FBGs con el fin de reducir el coste de adquisición de este tipo de sensores a coste de perder precisión. Por otro lado diseño e implementación ...
García Camarasa, José Alberto(Universitat Politècnica de València, 2013-11-14)
EN ESTE PROYECTO DE FINAL DE CARRERA SE REALIZA EL DISEÑO Y LA FABRICACIÓN DE DOS SENSORES MEDIANTE EL EMPLEO DE FIBRA ÓPTICA, UNO DE ELLOS PARA LA MEDICIÓN DEL FLUJO RESPIRATORIO Y OTRO PARA LA MEDICIÓN DE LA TEMPERATURA.
Barrera Vilar, David(Universitat Politècnica de València, 2013-11-11)
En esta tesis doctoral se presenta el diseño, la implementación y la caracterización de sensores
en fibra óptica para la monitorización de diversas magnitudes en ambientes adversos. Se
entiende como ambientes adversos ...
Madrigal Madrigal, Javier(Universitat Politècnica de València, 2022-02-14)
[ES] La fibra óptica ha supuesto una gran revolución en el mundo de las telecomunicaciones debido a su alta capacidad de transmisión y sus bajas pérdidas. Hoy en día no sería posible transportar la cantidad de tráfico que ...
Escobar-Vera, Camilo; Soriano-Amat, Miguel; Martins, Hugo F.; Barrera Vilar, David; Martín-López, Sonia; Gonzalez-Herraez, Miguel; Fernández-Ruiz, María R.(The Optical Society, 2023)
[EN] Shape sensing can be accomplished using optical fiber sensors through different interrogation principles such as fiber Bragg gratings, optical frequency-domain reflectometry (OFDR), or optical time-domain reflectometry ...
We present a proof-of-concept experiment aimed at increasing the sensitivity of Fiber-Bragg-gratings temperature sensors by making use of a weak-value-amplification scheme. The technique requires only linear optics elements ...
[EN] We report, for the first time to our knowledge. distributed radiofrequency signal processing built upon true time delay operation on a step-index few-mode fiber. Two 3-sample configurations with different time delay ...
[EN] We propose and experimentally demonstrate distributed radiofrequency signal on a few-mode-fibre device. The inscription of
long period gratings at specific locations along the fibre allows the excitation of the ...
Lo Presti, Daniela; Massaroni, Carlo; Leitao, Catia Sofia Jorge; Domingues, Maria De Fátima; Sypabekova, Marzhan; Barrera, David; Floris, Ignazio; Massari, Luca; Oddo, Calogero Maria; Sales Maicas, Salvador; Iordachita, Iulian Ioan; Tosi, Daniele; Schena, Emiliano(Institute of Electrical and Electronics Engineers, 2020)
[EN] In the last decades, fiber Bragg gratings (FBGs) have become increasingly attractive to medical applications due to their unique properties such as small size, biocompatibility, immunity to electromagnetic interferences, ...
Gasulla Mestre, Ivana; García-Cortijo, Sergi; Barrera Vilar, David; Hervás-Peralta, Javier; Sales Maicas, Salvador(Optical Society of America (OSA), 2017-07-27)
[EN] We implement "fiber-distributed signal processing" in the context of fiber-wireless
communications by using different multicore fibers, providing both radio access distribution and microwave photonics signal processing ...