Exploració per autor "Masoller Alonso, Cristina"
Ara es mostren els items 97-116 de 138
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Parameter and coupling estimation in small networks of Izhikevich's neurons
Aristides, Raul de Palma; Pons Rivero, Antonio Javier; Cerdeira, Hilda; Masoller Alonso, Cristina; Tirabassi, Giulio (2023-04-12)
Article
Accés obertNowadays, experimental techniques allow scientists to have access to large amounts of data. In order to obtain reliable information from the complex systems that produce these data, appropriate analysis tools are needed. ... -
Permutation entropy analysis of the output of a laser diode under stimulated Brillouin scattering optical feedback
Quintero Rodríguez, Leidy Johana; Zaldívar Huerta, Ignacio Enrique; Hong, Yanhua; Masoller Alonso, Cristina; Lee, Min Won (2021-08-16)
Article
Accés obertThe chaotic output emitted by a diode laser with optical feedback has fascinated the community for decades. The external cavity delay time imparts a weak level of periodicity to the laser output (the so-called "time delay ... -
Permutation entropy-based characterization of speckle patterns generated by semiconductor laser light
Tirabassi, Giulio; Duque Gijón, María; Tiana Alsina, Jordi; Masoller Alonso, Cristina (2023-12)
Article
Accés obertSemiconductor lasers with optical feedback are stochastic nonlinear systems that can display complex dynamics and abrupt changes when their operation conditions change. Even very small changes can lead to large variations ... -
Persistence and stochastic periodicity in the intensity dynamics of a fiber laser during the transition to optical turbulence
Carpi, Laura C.; Masoller Alonso, Cristina (2018-02-27)
Article
Accés obertMany natural systems display transitions among different dynamical regimes, which are difficult to identify when the data are noisy and high dimensional. A technologically relevant example is a fiber laser, which can display ... -
Perspectives on the importance of complex systems in understanding our climate and climate change—The Nobel Prize in Physics 2021
Gupta, Shraddha; Mastrantonas, Nikolaos; Masoller Alonso, Cristina; Kurths, Jürgen (American Institute of Physics (AIP), 2022-05)
Article
Accés obertThe Nobel Prize in Physics 2021 was awarded to Syukuro Manabe, Klaus Hasselmann, and Giorgio Parisi for their “groundbreaking contributions to our understanding of complex systems,” including major advances in the understanding ... -
Phase oscillators
Masoller Alonso, Cristina (Universitat Politècnica de Catalunya, 2021-03)
Apunts
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Polarization dynamics in vertical-cavity surface-emitting lasers with optical feedback through a quarter-wave plate
Masoller Alonso, Cristina; Abraham, N. B. (1999-02-22)
Article
Accés obertSquare-wave switching of the intensities of the orthogonal linearly polarized components of the output of a vertical-cavity surface-emitting laser(VCSEL) found previously in experiments with polarization-changing optical ... -
Polarization switching and hysteresis in vertical-cavity surface-emitting lasers subject to orthogonal optical injection
Salvide, Matias Fernando; Masoller Alonso, Cristina; Torre, Maria Susana (2014-10-01)
Article
Accés restringit per política de l'editorialWe study polarization switching and hysteresis in a vertical-cavity surface-emitting laser (VCSEL) subject to an orthogonal optical injection, such that the polarization of the injected light is perpendicular to that of ... -
Predictability of extreme intensity pulses in optically injected semiconductor lasers
Martinez Alvarez, Nuria; Borkar, Saurabh; Masoller Alonso, Cristina (2017-06-21)
Article
Accés obertThe predictability of extreme intensity pulses emitted by an optically injected semiconductor laser is studied numerically, by using a well-known rate equation model. We show that symbolic ordinal time-series analysis ... -
Predictability of optical rogue waves in optically injected semiconductor lasers
Martinez Alvarez, Nuria; Reinoso, Jose A.; Masoller Alonso, Cristina (Optical Society of American (OSA), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe predictability of ultra-high pulses emitted by optically injected semiconductor lasers is studied by using symbolic time-series analysis. Pulse patterns that are likely to occur before the rogue wave are identified. -
Quantification of network structural dissimilarities
Schieber, Tiabo A.; Carpi, Laura; Díaz Guilera, Albert; Pardalos, Panos M.; Masoller Alonso, Cristina; Ravetti, Martin G. (2017-01-09)
Article
Accés obertIdentifying and quantifying dissimilarities among graphs is a fundamental and challenging problem of practical importance in many fields of science. Current methods of network comparison are limited to extract only partial ... -
Quantifying changes in spatial patterns of surface air temperature dynamics over several decades
Zappala, Dario; Barreiro, Marcelo; Masoller Alonso, Cristina (2018-04-18)
Article
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Quantifying sudden changes in dynamical systems using symbolic networks
Masoller Alonso, Cristina; Hong, Yanhua; Ayad, Sarah; Gustave, Francois; Barland, Stéphane; Pons Rivero, Antonio Javier; Gómez, Sergio; Arenas, Alex (2015-02-24)
Article
Accés obertWe characterize the evolution of a dynamical system by combining two well-known complex systems' tools, namely, symbolic ordinal analysis and networks. From the ordinal representation of a time series we construct a network ... -
Quantifying the degree of locking in weakly forced stochastic systems
Tiana Alsina, Jordi; Quintero Quiroz, Carlos Alberto; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (American Institute of Physics (AIP), 2019-02-12)
Article
Accés obertControlling an stochastic nonlinear system with a small amplitude signal is a fundamental problem with many practical applications. Quantifying locking is challenging, and current methods, such as spectral or correlation ... -
Quantifying the synchronization of the spikes emitted by coupled lasers
Tiana Alsina, Jordi; Masoller Alonso, Cristina (Institute of Physics (IOP), 2023-07-01)
Article
Accés obertSynchronization phenomena is ubiquitous in nature, and in spite of having been studied for decades, it still attracts a lot of attention as is still challenging to detect and quantify, directly from the analysis of noisy ... -
Quantitative identification of dynamical transitions in a semiconductor laser with optical feedback
Quintero Quiroz, Carlos Alberto; Tiana Alsina, Jordi; Roma, Josep; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (Macmillan Publishers, 2016-11-18)
Article
Accés obertIdentifying transitions to complex dynamical regimes is a fundamental open problem with many practical applications. Semi- conductor lasers with optical feedback are excellent testbeds for studying such transitions, as ... -
Random delays and the synchronization of chaotic maps
Masoller Alonso, Cristina; Marti, Arturo C (American Institute of Physics (AIP), 2005-04)
Article
Accés restringit per política de l'editorialWe investigate the dynamics of an array of chaotic logistic maps coupled with random delay times. We report that for adequate coupling strength the array is able to synchronize, in spite of the random delays. Specifically, ... -
Remote recovery of audio signals from videos of optical speckle patterns: a comparative study of signal recovery algorithms
Halpaap Halpaap, Herbert Donatus; Amil Marletti, Pablo; Tiana Alsina, Jordi; Masoller Alonso, Cristina; Barcellona, Concetta (2020-03-16)
Article
Accés obertOptical remote sensors are nowadays ubiquitously used, thanks to unprecedented advances in the last decade in photonics, machine learning and signal processing tools. In this work we study experimentally the remote recovery ... -
Roadmap on optical rogue waves and extreme events
Akhmediev, N; Kibler, Bertrand; Baronio, Fabio; Masoller Alonso, Cristina (Institute of Physics (IOP), 2016-04-26)
Article
Accés obertThe pioneering paper 'Optical rogue waves' by Solli et al (2007 Nature 450 1054) started the new subfield in optics. This work launched a great deal of activity on this novel subject. As a result, the initial concept has ... -
Rogue waves in injected semiconductor lasers with current modulation: role of the modulation phase
Ahuja, Jatin; Nalawade, Dhananjay Bhiku; Zamora Munt, Jordi; Vilaseca Alavedra, Ramon; Masoller Alonso, Cristina (2014-11-17)
Article
Accés restringit per política de l'editorialSemiconductor lasers with continuous-wave optical injection display a rich variety of behaviors, including stable locking, periodic or chaotic oscillations, excitable pulses, etc. Within the chaotic regime it has been shown ...