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Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback (Articolo in rivista)

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Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback (Articolo in rivista) (literal)

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Al-Naimee K., Marino F., Ciszak M., Meucci R., Arecchi F. T. (2009)
Chaotic spiking and incomplete homoclinic scenarios in semiconductor lasers with optoelectronic feedback
in New journal of physics
(literal)

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CNR-Istituto Nazionale di Ottica Applicata, Largo E Fermi 6, 50125 Firenze, Italy; Physics Department, College of Science, University of Baghdad, Baghdad, Iraq; Dipartimento di Fisica,Università di Firenze, INFN, Sezione di Firenze, Via Sansone 1, I-50019 Sesto Fiorentino (FI), Italy (literal)

Titolo

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

Abstract

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 (literal)

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