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Proceedings Paper

External noise in semiconductor lasers
Author(s): Javier Martin Buldu; Jordi Garcia-Ojalvo; M. Carme Torrent; Jose Maria Sancho; Claudio R. Mirasso; Dante R. Chialvo
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Paper Abstract

In the present work we review recent results concerning stochastic phenomena in semiconductor lasers with optical feedback which operate in the low-frequency fluctuation (LFF) regime. Under these conditions the output intensity of the laser shows an irregular pulsated behavior in the form of sudden intensity dropouts. In the first two sections we show numerically the existence of stochastic and coherence resonance in the dropout appearance. These resonances are caused by the help of external colored noise introduced through the pumping current of the laser. In the third section we describe a recently reported new type of stochastic resonance, where a nonlinear system shows a resonance at a frequency not present neither at its internal time scales nor at any external perturbation. This phenomenon, known as ghost resonance, is reported both numerically and experimentally.

Paper Details

Date Published: 25 May 2004
PDF: 15 pages
Proc. SPIE 5468, Fluctuations and Noise in Photonics and Quantum Optics II, (25 May 2004); doi: 10.1117/12.546743
Show Author Affiliations
Javier Martin Buldu, Univ. Politecnica de Catalunya (Spain)
Jordi Garcia-Ojalvo, Univ. Politecnica de Catalunya (Spain)
M. Carme Torrent, Univ. Politecnica de Catalunya (Spain)
Jose Maria Sancho, Univ. de Barcelona (Spain)
Claudio R. Mirasso, Univ. de les Illes Balears (Spain)
Dante R. Chialvo, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 5468:
Fluctuations and Noise in Photonics and Quantum Optics II
Peter Heszler, Editor(s)

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