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Título : Stochastic entrainment of optical power dropouts
Autor : Buldú, Javier M., García-Ojalvo, Jordi, Mirasso, Claudio R., Torrent, M. C.
Palabras clave : [PACS] Fluctuation phenomena, random processes, noise, and Brownian motion
[PACS] Dynamics of nonlinear optical systems; optical instabilities, optical chaos and complexity, and optical spatio-temporal dynamics
[PACS] Semiconductor lasers; laser diodes
Fecha de publicación : 16-Aug-2002
Editor: American Physical Society
Citación : Physical Review E 66(2): 021106 (2002)
Resumen: We show that the natural pulsed behavior, in the form of sudden power dropouts, exhibited by semiconductor lasers subject to optical feedback can be entrained by the joint action of external noise and weak periodic driving. These power dropouts, which in the absence of forcing do not occur periodically, acquire the periodicity of the harmonic driving for an optimal amount of external noise,in what constitutes a form of stochastic resonance. This phenomenon is analyzed by means of a generalized Lang-Kobayashi model with external non-white noise in the modulated pump current, in terms of both the temporal correlation and the amplitude of the noise.
Descripción : 5 pages, 6 figures.-- PACS nrs.: 05.40.-a, 42.65.Sf, 42.55.Px.
Versión del editor: http://dx.doi.org/10.1103/PhysRevE.66.021106
URI : http://hdl.handle.net/10261/15317
ISSN: 1539-3755
DOI: 10.1103/PhysRevE.66.021106
Citación : Physical Review E 66(2): 021106 (2002)
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