The availability of a tunable delay line with a chip-size footprint is a crucial step towards the full implementation of integrated microwave photonic signal processors. Achieving a large and tunable group delay on a ...
[EN] Microwave photonics (MWP) is an emerging field in which radio frequency (RF) signals are generated, distributed, processed and analyzed using the strength of photonic techniques. It is a technology that enables various ...
Clement, Juan; Torregrosa, German; Hervás-Peralta, Javier; Barrera Vilar, David; Sales Maicas, Salvador; Fernandez-Pousa, Carlos R.(Institute of Electrical and Electronics Engineers (IEEE), 2016-05-15)
[EN] Incoherent Optical Fourier-Domain Reflectometry incorporating a dispersive delay line is used for the interrogation of an array of three identical fiber Bragg gratings with a Bragg wavelength of 1552.81 nm, reflectivity ...
Hervás-Peralta, Javier; Tosi, Daniele; García-Miquel, Héctor; Barrera Vilar, David; Fernandez-Pousa, Carlos R.; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2017)
[EN] The Karhunen-Loeve transform (KLT) is used to
retrieve the wavelength information of several fiber Bragg
gratings (FBGs) that are acting as a multiplexed sensor. The
modulated light of a broadband source is launched ...
Ricchiuti, Amelia Lavinia(Universitat Politècnica de València, 2013-10-23)
El principal objetivo de este trabajo ha sido el estudio y desarrollo, tanto teórico como experimental, de sistemas novedosos para la interrogación de sensores de nivel de líquido y de temperatura basados en fibras ópticas ...
Ricchiuti, Amelia Lavinia; Barrera Vilar, David; Sales Maicas, Salvador; Thevenaz, Luc; Capmany Francoy, José(Optical Society of America, 2013-11-18)
A novel technique for interrogating photonic sensors based on long fiber Bragg gratings (FBGs) is presented and experimentally demonstrated, dedicated to detect the presence and the precise location of several spot events. ...
Barrera Vilar, David; Madrigal-Madrigal, Javier; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2018)
[EN] Multicore optical fibers are especially attractive for the fabrication of curvature and shape sensors due to the spatial distribution of the different cores. Fiber Bragg gratings have been used in the past for the ...
A system to interrogate photonic sensors based on long weak fiber Bragg gratings (FBGs) is illustrated and experimentally demonstrated. The FBG sensor is able to detect and measure the precise location of several spot ...
[EN] The aim of this paper is to report the design of a low-cost plastic optical fiber (POF) pressure sensor, embedded in a mattress. We report the design of a multipoint sensor, a cheap alternative to the most common fiber ...
García Miquel, Ángel Héctor; Barrera Vilar, David; Amat, Rafael; Kurlyandskaya, G. V.; Sales Maicas, Salvador(Elsevier, 2016-02)
We have designed a temperature and strain monitoring system for a magnetic actuator
based on the giant magnetostrictive material Terfenol-D (Tb0.3 Dy0.7Fe1.92) with Fiber
Bragg grating (FBG) sensors. Magneto-elastic ...
We have designed a magneto-optical sensor based on fiber Bragg grating (FBG) and
Metglas 2605CO (Fe67Co18B14Si1) material with magnetostriction coefficient of 35ppm. The FBG
sensor is glued between two sheets of Metglas. ...
Floris, Ignazio; Sales Maicas, Salvador; Calderón García, Pedro Antonio; Adam, Jose M(Elsevier, 2019-01)
[EN] This paper describes a study of the influence of strain measurement uncertainty on sensing curvature and bending direction, considering one of the most widely used fiber geometries for sensing applications (7-core ...
Grau Ruiz, Daniel(Universitat Politècnica de València, 2017-05-03)
En este Trabajo Final de Máster (TFM) se ha realizado una caracterización y evaluación del sistema de medida de distancias absolutas mediante inteferometría heterodina. Se ha observado a aparición de efecto Speckle cuando ...
Ruiz Escorihuela, Víctor Javier(Universitat Politècnica de València, 2023-10-05)
[ES] Se ha puesto en marcha un sistema de captación en tiempo real de señales acústicas procedentes de tuberías mediante procedimientos ópticos. Para ello se ha configurado una tarjeta de adquisición de datos, además de ...
Landazábal Durán, Leila Dayani(Universitat Politècnica de València, 2013-07-11)
[ES] - En este trabajo se describen los diferentes métodos desarrollados para la medida del perfil del índice de refracción en fibras ópticas y se hace un énfasis especial en el método RNF (Refractive Index Near Field), ...
Zheng, Di; Madrigal-Madrigal, Javier; Barrera Vilar, David; Sales Maicas, Salvador; Capmany Francoy, José(Institute of Electrical and Electronics Engineers, 2017-10-15)
[EN] We propose and experimentally demonstrate an approach to perform high-resolution and temperature-insensitive interrogation of a fiber Bragg grating (FBG)-based multicore fiber (MCF) curvature sensor using a microwave ...
Capmany Francoy, José; Mora Almerich, José; Gasulla Mestre, Ivana; Sancho Durá, Juan; Lloret Soler, Juan Antonio; Sales Maicas, Salvador(Optical Society of America, 2013-02-15)
This paper reviews the recent advances in the field of radio frequency signal processing using photonic devices and subsystems ormicrowave photonic (MWP) signal processing. We focus our attention on the results reported ...
Hervás-Peralta, Javier; Barrera Vilar, David; Madrigal-Madrigal, Javier; Sales Maicas, Salvador(Institute of Electrical and Electronics Engineers, 2018)
[EN] An interrogation technique of cascaded FBG sensors
based on a microwave photonics filtering technique under coherent
regime is presented. The sensing information of a 5-m fiber
coil containing 500 weak FBG with a ...
A system to interrogate photonic sensors based on a very weak fiber Bragg grating cascade fiber is presented and experimentally validated and dedicated to detecting the presence and location of a spot event. The distributed ...
Hervás-Peralta, Javier; Ricchiuti, Amelia Lavinia; Li, Wei; Zhu, Ning Hua; Fernandez-Pousa, Carlos R.; Sales Maicas, Salvador; Li, Ming; Capmany Francoy, José(Institute of Electrical and Electronics Engineers, 2017)
[EN] This paper presents a review and discussion of the
applications of Microwave Photonic techniques and
functionalities to the field of optical fiber sensors. A specific
end-to end model for its characterization is ...