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dc.contributor.author
Tiana Alsina, J.  
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Torrent, M. C.  
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Rosso, Osvaldo Anibal  
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Masoller, C.  
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Garcia Ojalvo, J.  
dc.date.available
2023-03-06T17:09:36Z  
dc.date.issued
2010-07  
dc.identifier.citation
Tiana Alsina, J.; Torrent, M. C.; Rosso, Osvaldo Anibal; Masoller, C.; Garcia Ojalvo, J.; Quantifying the statistical complexity of low-frequency fluctuations in semiconductor lasers with optical feedback; American Physical Society; Physical Review A: Atomic, Molecular and Optical Physics; 82; 013819; 7-2010; 138191-138196  
dc.identifier.issn
1050-2947  
dc.identifier.uri
http://hdl.handle.net/11336/189708  
dc.description.abstract
Low-frequency fluctuations (LFFs) represent a dynamical instability that occurs in semiconductor lasers when they are operated near the lasing threshold and subject to moderate optical feedback. LFFs consist of sudden power dropouts followed by gradual, stepwise recoveries. We analyze experimental time series of intensity dropouts and quantify the complexity of the underlying dynamics employing two tools from information theory, namely, Shannon’s entropy and the Mart´ın, Plastino, and Rosso statistical complexity measure. These measures are computed using a method based on ordinal patterns, by which the relative length and ordering of consecutive interdropout intervals (i.e., the time intervals between consecutive intensity dropouts) are analyzed, disregarding the precise timing of the dropouts and the absolute durations of the interdropout intervals. We show that this methodology is suitable for quantifying subtle characteristics of the LFFs, and in particular the transition to fully developed chaos that takes place when the laser’s pump current is increased. Our method shows that the statistical complexity of the laser does not increase continuously with the pump current, but levels off before reaching the coherence collapse regime. This behavior coincides with that of the first- and second-order correlations of the interdropout intervals, suggesting that these correlations, and not the chaotic behavior, are what determine the level of complexity of the laser’s dynamics. These results hold for two different dynamical regimes, namely, sustained LFFs and coexistence between LFFs and steady-state emission.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Physical Society  
dc.rights
info:eu-repo/semantics/openAccess  
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https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
Permutation entropy  
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Permutation statistical complexity  
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Low-frequency fluctuations  
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Optical feedback  
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Semiconductor lasers  
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Óptica  
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Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Quantifying the statistical complexity of low-frequency fluctuations in semiconductor lasers with optical feedback  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-03-02T15:23:29Z  
dc.journal.volume
82  
dc.journal.number
013819  
dc.journal.pagination
138191-138196  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Tiana Alsina, J.. Universidad Politécnica de Catalunya; España  
dc.description.fil
Fil: Torrent, M. C.. Universidad Politécnica de Catalunya; España  
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Fil: Rosso, Osvaldo Anibal. Universidade Federal de Minas Gerais; Brasil. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Cálculo; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina  
dc.description.fil
Fil: Masoller, C.. Universidad Politécnica de Catalunya; España  
dc.description.fil
Fil: Garcia Ojalvo, J.. Universidad Politécnica de Catalunya; España  
dc.journal.title
Physical Review A: Atomic, Molecular and Optical Physics  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/pra/abstract/10.1103/PhysRevA.82.013819  
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info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevA.82.013819