Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título
Mostrando ítems 292-311 de 391
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Real-time simulation technique of a microgrid model for DER penetration
Mentesidi, Konstantina; Rikos, Evangelos; Kleftakis, Vasilis; Kotsampopoulos, Panos; Aguado Alonso, Mónica
(EAI, 2014)
Artículo / Artikulua 
Comprehensive analysis of Distributed Energy Resources (DER) integration requires tools that provide computational power and flexibility. In this context, throughout this paper PHIL simulations are performed to emulate the ... -
Recent developments in fiber optics humidity sensors
Ascorbe Muruzabal, Joaquín 
; Corres Sanz, Jesús María ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (MDPI, 2017)
Artículo / Artikulua
A wide range of applications such as health, human comfort, agriculture, food processing and storage, and electronic manufacturing, among others, require fast and accurate measurement of humidity. Sensors based on optical ... -
Rectangular waveguide filters with meandered topology
Teberio Berdún, Fernando ; Percaz Ciriza, Jon Mikel ; Arregui Padilla, Iván ; Martín Iglesias, Petronilo; Lopetegui Beregaña, José María ; Gómez Laso, Miguel Ángel ; Arnedo Gil, Israel (IEEE, 2018)
Artículo / Artikulua
In this paper, a new topology for rectangular waveguide bandpass and low-pass filters is presented. A simple, accurate, and robust design technique for these novel meandered waveguide filters is provided. The proposed ... -
Refractometric sensors based on multimode interference in a thin-film coated singlemode– multimode–single-mode structure with reflection configuration
Del Villar, Ignacio ; Socorro Leránoz, Abián Bentor ; Corres Sanz, Jesús María ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (Optical Society of America, 2014)
Artículo / Artikulua
Thin-film coated single-mode–multimode–single-mode (SMS) structures have been analyzed both theoretically and experimentally with the aim of detecting different refractive indices. By adequate selection of the thickness ... -
Regular and anomalous extraordinary optical transmission at the THz-gap
Kuznetsov, Sergei A.; Navarro Cía, Miguel ; Kubarev, V. V.; Gelfand, A. V.; Beruete Díaz, Miguel ; Campillo, Igor; Sorolla Ayza, Mario (Optical Society of America, 2009)
Artículo / Artikulua
In this paper Anomalous Extraordinary Transmission (ET) is reported for s-polarization of low loss doubly periodic subwavelength hole arrays patterned on polypropylene (PP) substrates by conventional contact photolithography ... -
Remote (250 km) fiber Bragg grating multiplexing system
Fernández Vallejo, Montserrat; Rota Rodrigo, Sergio ; López-Amo Sáinz, Manuel (MDPI, 2011)
Artículo / Artikulua
We propose and demonstrate two ultra-long range fiber Bragg grating (FBG) sensor interrogation systems. In the first approach four FBGs are located 200 km from the monitoring station and a signal to noise ratio of 20 dB ... -
Remote-time division multiplexing of bending sensors using a broadband light source
Bravo Acha, Mikel ; López-Amo Sáinz, Manuel (Hindawi Publishing Corporation, 2012)
Artículo / Artikulua
This work experimentally demonstrates a remote sensing network which interrogates bending sensors using time-division multiplexing techniques and a broadband light source. The bending sensors are located 50 km away from ... -
Resilient amplified double ring optical networks to multiplex optical fibre sensors
Fernández Vallejo, Montserrat; Pérez Herrera, Rosa Ana ; Elosúa Aguado, César ; Díaz Lucas, Silvia ; Urquhart, Paul; Bariáin Aisa, Cándido ; López-Amo Sáinz, Manuel (IEEE / OSA, 2009)
Artículo / Artikulua
We report the experimental demonstration of two configurations of an amplified optical fibre double ring network for the multiplexing of sensors. The networks are designed to be inherently resilient to fibre failures because ... -
Resolution capabilities of future THz cameras
Lizarraga Cubillos, Juan Camilo; Río Bocio, Carlos del (Radioengineering Society, 2011)
Artículo / Artikulua
THz technology for developing imaging systems has recently aroused great interest, mainly due to the large number of applications in which these frequencies can be used: security, vision in hard environments, etc. In ... -
Resonances in coated long period fiber gratings and cladding removed multimode optical fibers: a comparative study
Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Hernáez Sáenz de Zaitigui, Miguel ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (Optical Society of America, 2010)
Artículo / Artikulua
Two optical fiber devices have been coated in parallel: a long period fiber grating (LPFG) and a cladding-removed multimode optical fiber (CRMOF). The progressive coating of the LPFG by means of the layer-by-layer ... -
Resonant quasi-periodic structure for rectangular waveguide technology with wide stopband and band-pass behavior
Arregui Padilla, Iván ; Teberio Berdún, Fernando ; Arnedo Gil, Israel ; Percaz Ciriza, Jon Mikel ; Gómez Torrent, Adrián ; Chudzik, Magdalena ; Gómez Laso, Miguel Ángel ; Lopetegui Beregaña, José María (EMW Publishing, 2016)
Artículo / Artikulua
In this paper, a novel quasi-periodic structure for rectangular waveguide technology is proposed. The constituent unit cells of the structure feature a resonant behavior, providing high attenuation levels in the stopband ... -
Response of complementary split ring resonators in composite stratified substrate integrated waveguide
Pérez Escudero, José Manuel ; Jarauta Ayensa, Eduardo ; Falcone Lanas, Francisco Javier ; Beruete Díaz, Miguel (American Institute of Physics, 2017)
Artículo / Artikulua
In this work, the behavior of a Complementary Split Ring Resonator (CSRR) operating within the quasi-static resonance regime and embedded in a composite stratified Substrate Integrated Waveguide (SIW) with two different ... -
Review on electromagnetic band gap technology and applications
Maagt, Peter de; Gonzalo García, Ramón ; Vardaxoglou, J. (URSI, 2004)
Artículo / Artikulua
This paper reviews the primary application areas of Electromagnetic BandGap (EBG) technology at microwave and (sub)millimetre wave frequencies. Examples of EBG configurations in the microwave region are shown and include ... -
Robust fiber-optic sensor networks
Pérez Herrera, Rosa Ana ; Fernández Vallejo, Montserrat ; López-Amo Sáinz, Manuel (Springer, 2012)
Artículo / Artikulua
The ability to operate despite failure will become increasingly important as the use of optical sensor networks grows, and the amount of sensing information to be handled by a sensor network is increasing, especially for ... -
Role of external cavity reflectivity for achieving polarization control and stabilization of vertical cavity surface emitting laser
Arizaleta Arteaga, Mikel ; López-Amo Sáinz, Manuel ; Thienpont, Hugo; Panajotov, Krassimir (AIP Publishing, 2007)
Artículo / Artikulua
The authors present the experimental results showing how the external mirror reflectivity affects the polarization properties of a vertical cavity surface emitting laser subject to optical feedback from an extremely short ... -
Routing with classical corrugated waveguide low-pass filters with embedded bends
Teberio Berdún, Fernando ; Percaz Ciriza, Jon Mikel ; Arregui Padilla, Iván ; Martín Iglesias, Petronilo; Lopetegui Beregaña, José María ; Gómez Laso, Miguel Ángel ; Arnedo Gil, Israel (EMW Publishing, 2018)
Artículo / Artikulua
A very simple design method to embed routing capabilities in classical corrugated filters is presented in this paper. The method is based on the calculation of the heights and lengths of the so-called filters design ... -
Second-order nonlocal effects mitigation in Brillouin optical time-domain analysis sensors by tracking the Brillouin frequency shift profile of the fiber
Mompó Roselló, Juan José; Iribas Pardo, Haritz ; Urricelqui Polvorinos, Javier ; Loayssa Lara, Alayn (IEEE, 2017)
Artículo / Artikulua
We report on an additional limitation that has been found in Brillouin optical time-domain analysis (BOTDA) sensors due to the so-called second-order nonlocal effects (NLE). Second-order NLE appear in BOTDA setups that ... -
Sensitivity enhancement experimental demonstration using a low cutoff wavelength SMS modified structure coated with a pH sensitive film
Rodríguez Rodríguez, Wenceslao Eduardo; Del Villar, Ignacio ; Ruiz Zamarreño, Carlos ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier ; Rodríguez Rodríguez, Adolfo Josué; Domínguez Cruz, René (Elsevier, 2018)
Artículo / Artikulua
The multimode interference (MMI) effect in a single mode-multimode-single mode (SMS) can be used fordevelopment of wavelength shift detection based sensors. In this work, the focus is centered on obtainingwavelength shifts ... -
Sensitivity enhancement in low cutoff wavelength long-period fiber gratings by cladding diameter reduction
Del Villar, Ignacio ; Partridge, Matthew; Rodríguez Rodríguez, Wenceslao Eduardo; Fuentes Lorenzo, Omar ; Socorro Leránoz, Abián Bentor ; Díaz Lucas, Silvia ; Corres Sanz, Jesús María ; James, Stephen; Tatam, Ralph (MDPI, 2017)
Artículo / Artikulua
The diameter of long-period fiber gratings (LPFGs) fabricated in optical fibers with a low cutoff wavelength was be reduced by hydrofluoric acid etching, enhancing the sensitivity to refractive index by more than a factor ... -
Sensitivity improvement of a humidity sensor based on silica nanospheres on a long-period fiber grating
Viegas, Diana; Goicoechea Fernández, Javier ; Santos, José Luís; Araújo, Francisco Moita; Ferreira, Luis Alberto; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (MDPI, 2009)
Artículo / Artikulua
This work addresses a new configuration that improves the sensitivity of a humidity sensor based on a long-period fiber grating coated with a SiO(2)-nanospheres film. An intermediate higher refractive index overlay, ...
