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Processing distributed inputs in coupled excitable lasers
dc.contributor.author | Martínez González, Cristina |
dc.contributor.author | Martín Buldú, Javier |
dc.contributor.author | Torrent Serra, Maria del Carmen |
dc.contributor.author | García Ojalvo, Jordi |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Física i Enginyeria Nuclear |
dc.date.accessioned | 2014-05-08T15:46:38Z |
dc.date.available | 2014-05-08T15:46:38Z |
dc.date.created | 2007-11 |
dc.date.issued | 2007-11 |
dc.identifier.citation | Martinez, M. [et al.]. Processing distributed inputs in coupled excitable lasers. "Physical review A", Novembre 2007, vol. 76, núm. 5, p. 053824-1-053824-6. |
dc.identifier.issn | 1050-2947 |
dc.identifier.uri | http://hdl.handle.net/2117/22924 |
dc.description.abstract | In many instances, networks of dynamical elements are subject to distributed input signals that enter the network through different nodes. In these cases, processing of the input signals may be mediated by coupling, in what constitutes an emerging property of the network. Here we study experimentally this effect in two mutually injected semiconductor lasers with optical feedback, operating in an excitable regime. The lasers are subject to different periodic input signals in their pump current, with distinct frequencies. Our results show that when the signals are harmonics of an absent fundamental, the laser array is able to process these signals and respond at the missing fundamental frequency. When the input frequencies are rigidly shifted from their harmonic values, the response frequency follows a simple law derived from a linear sum of the inputs, even though the array integrates the electrical inputs after having transduced them optically. The results are reproduced numerically with a dynamical model of the laser array. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Física |
dc.subject.lcsh | Semiconductor laser |
dc.title | Processing distributed inputs in coupled excitable lasers |
dc.type | Article |
dc.subject.lemac | Làsers de semiconductors |
dc.contributor.group | Universitat Politècnica de Catalunya. GREO - Grup de Recerca en Enginyeria Òptica |
dc.contributor.group | Universitat Politècnica de Catalunya. DONLL - Dinàmica no Lineal, Òptica no Lineal i Làsers |
dc.identifier.doi | 10.1103/PhysRevA.76.053824 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | http://journals.aps.org/pra/abstract/10.1103/PhysRevA.76.053824 |
dc.rights.access | Open Access |
local.identifier.drac | 668913 |
dc.description.version | Postprint (published version) |
local.citation.author | Martinez, M.; Martín Buldú, J.; Torrent, M.C.; Garcia-Ojalvo, J. |
local.citation.publicationName | Physical review A |
local.citation.volume | 76 |
local.citation.number | 5 |
local.citation.startingPage | 053824-1 |
local.citation.endingPage | 053824-6 |
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