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Spatial-frequency multiplexing of high-sensitivity liquid level sensors based on multimode interference micro-fibers
(Elsevier, 2020)
info:eu-repo/semantics/article,
This paper shows a new fiber optic sensor multiplexed system for liquid level sensing. Biconical fibertapers converging at a 40 mm-long micro-fiber are used as transducers. The tapers are designed to providethe propagation ...
Medida de torsión en seguidores solares con sensores de fibra óptica
(SEDOPTICA, 2021)
Contribución a congreso / Biltzarrerako ekarpena,
En este trabajo se ha monitorizado la torsión sufrida por una estructura de seguidores solares
empleando sensores de fibra óptica. Estas medidas de campo se han obtenido con una
red de sensores formada por 45 redes de ...
Sistema de interrogación multi-sensor basado en multiplexación en longitud de onda y tiempo
(SEDOPTICA, 2021)
Contribución a congreso / Biltzarrerako ekarpena,
En este trabajo se propone un sistema de interrogación versátil y económico basada en la
generación de pulsos empleando la modulación directa de diodos láser DFB. Se ha demostrado
una resolución en longitud de onda de 1 ...
Microdrilled tapers to enhance optical fiber lasers for sensing
(Nature Research, 2021)
info:eu-repo/semantics/article,
In this work, an experimental analysis of the performance of different types of quasi-randomly distributed reflectors inscribed into a single-mode fiber as a sensing mirror is presented. These artificially-controlled ...
In-field torsion measurements on solar trackers using fiber optic sensors
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
In-field torsion measurements on solar trackers using fiber Bragg gratings are presented. 45 FBG sensors have been deployed in an operational solar energy plant to study the mechanical response of the structure to wind.
Enhanced optical fiber lasers and optical fiber sensors assisted by micro-drilled optical fibers
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
Enhanced OFS assisted by micro-drilled optical fibers acting as mirrors are
demonstrated. Strain sensitivity improved more than one order of magnitude in comparison
with FBG sensors using a 50 μm-waist micro-drilled taper ...
Effect of linewidth on the relative intensity noise in random distributed feedback raman fiber lasers
(MDPI, 2022)
Artículo / Artikulua,
We experimentally explore the relation between spectral linewidth and RIN transfer in half-open cavity random distributed feedback Raman lasers, demonstrating for the first time the possibility of adjusting the pump-to-signal ...
Traffic monitoring based on FBG sensor arrays in asphalt structures
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
We evaluate the capabilities of optical fiber sensors to measure traffic flow, speed, weight estimation and pavement degradation. The proper operation of the system has been proved 3.5 years after the installation in a ...
Distributed humidity sensor for moisture-front monitoring in soils
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
In this contribution, high spatial resolution distributed humidity sensing was demonstrated for moisture-front monitoring in soils by using polyimide coated optical fiber.
WDM and TDM interrogation by sequentially pulsing direct modulated DFBs
(Optica, 2020)
Contribución a congreso / Biltzarrerako ekarpena,
A new versatile and cost-effective interrogation system by pulsing direct modulated (DM) DFB laser diodes is proposed. 1 pm wavelength resolution and 600 m sensor spacing is demonstrated by sequentially pulsing a DM DFB.