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Título

Entrainment of optical low-frequency fluctuations is enhanced by coupling

AutorBuldú, Javier M.; García-Ojalvo, Jordi; Torrent, M. C.; Vicente, Raúl; Pérez, Toni; Mirasso, Claudio R.
Palabras claveLow-frequency fluctuations
Periodic entrainment
Current modulation
Coupled semiconductor lasers
Synchronization
Bidirectional coupling
Fecha de publicación5-mar-2003
EditorWorld Scientific Publishing
CitaciónFluctuation and Noise Letters 3(2): 127-136 (2003)
ResumenThe control of the low-frequency fluctuations exhibited by two mutually coupled semiconductor lasers is studied experimentally and numerically. We observe that coupling enhances the response of the system to a weak periodic modulation of the injection current of one of the lasers, leading to a highly efficient entrainment of the synchronized low-frequency power dropouts to the external periodic driving. We compare the quality of the entrainment with the one obtained in a single semiconductor laser with optical feedback, showing the beneficial role of coupling in this pursuit. The experimental observations are satisfactorily reproduced by numerical simulations of a set of coupled delay-differential rate equations.
Descripción10 pages, 7 figures.-- Full-text version available Open Access at: http://www-fen.upc.es/users/ojalvo/papers/elff.pdf
Versión del editorhttp://dx.doi.org/10.1142/S0219477503001191
URIhttp://hdl.handle.net/10261/14845
DOI10.1142/S0219477503001191
ISSN0219-4775 (Print)
1793-6780 (Online)
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