Experimental evidence of van der Pol-Fitzhugh-Nagumo dynamics in semiconductor optical amplifiers

被引：78
|
作者：
Barland, S
Piro, O
Giudici, M
Tredicce, JR
Balle, S
机构：
[1] UIB, CSIC, IMEDEA, Inst Mediterrani Estudis Avancats, E-07190 Esporles, Spain
[2] UNSA, CNRS, UMR 6618, Inst Non Lineaire Nice, F-06560 Valbonne, France
来源：
PHYSICAL REVIEW E | 2003年 / 68卷 / 03期
关键词：
D O I：
10.1103/PhysRevE.68.036209
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：
Thermo-optical pulsing in semiconductor amplifiers is experimentally shown to correspond to a very common excitable scenario (the van der Pol-Fitzhugh-Nagumo system). Self-sustained oscillations appear in the sequence predicted by this simple dynamical model as we change either the injection level or the bias current. Periodic modulation of these parameters leads to the characteristic phase-locking structure. Furthermore, coherence resonance is observed when external noise is added to the system.
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页数：6
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