Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback

被引：48

作者：

Al-Naimee, Kais ^{[1
,2
]}

Marino, Francesco ^{[3
]}

Ciszak, Marzena ^{[1
]}

Meucci, Riccardo ^{[1
]}

Arecchi, F. Tito ^{[1
,3
]}

机构：

[1] CNR, Ist Nazl Ott Applicata, I-50125 Florence, Italy

[2] Univ Baghdad, Coll Sci, Dept Chem, Baghdad, Iraq

[3] Univ Florence, Ist Nazl Fis Nucl, Sez Firenze, Dipartimento Fis, I-50019 Sesto Fiorentino, FI, Italy

来源：

NEW JOURNAL OF PHYSICS | 2009年 / 11卷

关键词：

MIXED-MODE OSCILLATIONS; CHEMICAL-SYSTEMS; INSTABILITIES; DYNAMICS; SUBJECT;

D O I：

10.1088/1367-2630/11/7/073022

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We demonstrate experimentally and theoretically the existence of slow chaotic spiking sequences in the dynamics of a semiconductor laser with ac-coupled optoelectronic feedback. The timescale of these dynamics is fully determined by the high-pass filter in the feedback loop and their erratic, though deterministic, nature is evidenced by means of the interspike interval (ISI) probability distribution. We eventually show that this regime is the result of an incomplete homoclinic scenario to a saddle-focus, where an exact homoclinic connection does not occur.

引用

页数：11

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