Broadband Chaos Generated by an Optoelectronic Oscillator

被引：150

作者：

Callan, Kristine E. ^{[1
]}

Illing, Lucas ^{[1
]}

Gao, Zheng ^{[1
]}

Gauthier, Daniel J. ^{[1
]}

Schoell, Eckehard ^{[1
,2
]}

机构：

[1] Duke Univ, Dept Phys, Durham, NC 27708 USA

[2] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 11期

关键词：

BIFURCATIONS; SYSTEMS;

D O I：

10.1103/PhysRevLett.104.113901

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We study an optoelectronic time-delay oscillator that displays high-speed chaotic behavior with a flat, broad power spectrum. The chaotic state coexists with a linearly stable fixed point, which, when subjected to a finite-amplitude perturbation, loses stability initially via a periodic train of ultrafast pulses. We derive approximate mappings that do an excellent job of capturing the observed instability. The oscillator provides a simple device for fundamental studies of time-delay dynamical systems and can be used as a building block for ultrawide-band sensor networks.

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页数：4

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