Stochastic entrainment of optical power dropouts -: art. no. 021106

被引：20

作者：

Buldú, JM

García-Ojalvo, J

Mirasso, CR

Torrent, MC

机构：

[1] Univ Politecn Cataluna, Dept Fis & Engn Nucl, E-08222 Terrassa, Spain

[2] Univ Illes Balears, Dept Fis, E-07071 Palma de Mallorca, Spain

来源：

PHYSICAL REVIEW E | 2002年 / 66卷 / 02期

关键词：

D O I：

10.1103/PhysRevE.66.021106

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

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 nonwhite noise in the modulated pump current, in terms of both the temporal correlation and the amplitude of the noise.

引用

页码：1 / 021106

页数：5

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