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Título : Entrainment of optical low-frequency fluctuations is enhanced by coupling
Autor : Buldú, Javier M., García-Ojalvo, Jordi, Torrent, M. C., Vicente, Raúl, Pérez, Toni, Mirasso, Claudio R.
Palabras clave : Low-frequency fluctuations
Periodic entrainment
Current modulation
Coupled semiconductor lasers
Bidirectional coupling
Fecha de publicación : 5-Mar-2003
Editor: World Scientific Publishing
Resumen: The 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.
Descripción : 10 pages, 7 figures.-- Full-text version available Open Access at:
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ISSN: 0219-4775 (Print)
1793-6780 (Online)
DOI: 10.1142/S0219477503001191
Citación : Fluctuation and Noise Letters 3(2): 127-136 (2003)
Appears in Collections:(IFISC) Artículos

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