Exploració per autor "Dios Otín, Víctor Federico"
Ara es mostren els items 30-45 de 45
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Intensity-modulated linear-frequency-modulated continuous-wave lidar for distributed media: fundamentals of technique
(2010-06-10)
Article
Accés restringit per política de l'editorialWe analyze the intensity-modulation frequency-modulated continuous-wave (FMCW) technique for lidar remote sensing in the context of its application to distributed media. The goal of the technique is the reproduction of ... -
Measurement report: Spectral and statistical analysis of aerosol hygroscopic growth from multi-wavelength lidar measurements in Barcelona, Spain
(European Geosciences Union (EGU), 2022-06-14)
Article
Accés obertThis paper presents the estimation of the hygroscopic growth parameter of atmospheric aerosols retrieved with a multi-wavelength lidar, a micro-pulse lidar (MPL) and daily radiosoundings in the coastal region ofBarcelona, ... -
Medida del perfil de velocidad de un líquido en un tubo de sección circular mediante un radar láser
(2007-09)
Text en actes de congrés
Accés obertIn this paper we present the measures of the profile or velocity gradient of a liquid (water) across a circular section pipe in laminar state, by means of a two-dimension laser radar system (2D-LDA) designed by the ... -
Nonlinear resonant conversion of modes in optical waveguides
(ELSEVIER SCIENCE BV, 1995-07-31)
Article
Accés obertA new class of resonant exchange of power among three co-propagating modes in dielectric optical waveguides exhibiting Kerr-like nonlinearity is reported. Unlike the coupling of modes travelling in different, spatially ... -
On the choice of the number of samples in laser Doppler anemometry signal processing
(2001-05)
Article
Accés obertThe minimum number of samples that must be taken from a sinusoidal signal affected by white Gaussian noise, in order to find its frequency with a predetermined maximum error, is derived. This analysis is of interest in ... -
Phase space description of nonlinear directional couplers
(1994-07)
Article
Accés obertA comprehensive analysis of the symmetric nonlinear directional coupler as a function of the excitation conditions is reported. The analysis is based on a coupled-mode technique in normalized (dimensionless) parameters, ... -
Phase space description of nonlinear directional couplers
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1994-07-01)
Article
Accés obertA comprehensive analysis of the symmetric nonlinear directional coupler as a function of the excitation conditions is reported. The analysis is based on a coupled-mode technique in normalized (dimensionless) parameters, ... -
Propagación de ondas monocromáticas en guíaondas dieléctricas planas formadas por medios no lineales tipo Keir: Aplicación al diseño de dispositivos lógicos
(Universitat Politècnica de Catalunya, 1992-03-05)
Tesi
Accés obertEl trabajo se enmarca dentro del estudio de ciertas propiedades ópticas con vistas a su inclusión en el diseño de dispositivos de conmutación de señales ópticas. En particular se ha prestado atención a los medios que exhiben ... -
Scintillation and beam-wander analysis in an optical ground station–satellite uplink
(OPTICAL SOC AMER, 2004-07-31)
Article
Accés obert -
Sistema lidar heterodino para medida de desplazamiento de superficies
(Masgrau, E. (ed.) Universidad de Zaragoza, 2000)
Text en actes de congrés
Accés obertPresentamos un prototipo de un sistema lidar (radar láser) de onda continua heterodino de baja potencia, para la medida de la velocidad de desplazamiento de superficies. Ofrece simplicidad y fácil alineación de ... -
Supermode analysis of the three-waveguide nonlinear directional coupler: the critical power
(ELSEVIER SCIENCE BV, 1996-10-01)
Article
Accés obertThe three-waveguide nonlinear directional coupler switching characteristic is studied using the eigenmodes of the structure (i.e. supermodes). This model, which is more exact than the one used in previous works, has allowed ... -
Supermode analysis of the three-waveguide nonlinear directional coupler: the critical power
(1996-10)
Article
Accés restringit per política de l'editorialThe three-waveguide nonlinear directional coupler switching characteristic is studied using the eigenmodes of the structure (i.e. supermodes). This model, which is more exact than the one used in previous works, has allowed ... -
Temporal analysis of laser beam propagation in the atmosphere using computer-generated long phase screens
(2008-02-04)
Article
Accés obertTemporal analysis of the irradiance at the detector plane is intended as the first step in the study of the mean fade time in a free optical communication system. In the present work this analysis has been performed for a ... -
Temporal statistics of the beam-wander contribution to scintillation in ground-to-satellite optical links
(2005-09-07)
Article
Accés obertThe beam-wander contribution to the scintillation in a ground-to-satellite free-space optical link is one of major importance. An analytical model, based on the duality between beam wander and angle-of-arrival fluctuations, ... -
Use of pure rotational Raman channels for lidar measurement of aerosol extinction coefficient: the EARLINET/ACTRIS Barcelona station experience
(International Society for Photo-Optical Instrumentation Engineers (SPIE), 2022)
Text en actes de congrés
Accés restringit per política de l'editorialAdvances in interference filter technology permit currently using selected parts of the N2 and O2 pure rotational Raman spectra with very low temperature sensitivity, while rejecting sufficiently the elastic return. The ... -
Wireless optical communications through the turbulent atmosphere: a review
(InTech — Open Access Company, 2012-03-07)
Capítol de llibre
Accés obert
