https://doi.org/10.1140/epjd/e2010-00093-8
Excitability of periodic and chaotic attractors in semiconductor lasers with optoelectronic feedback
1
CNR-Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy
2
Physics Department, College of Science, University of Baghdad, Al Jadiriah, Baghdad, Iraq
3
Dipartimento di Fisica, Università di Firenze, INFN, Sezione di Firenze, via Sansone 1, 50019 Sesto Fiorentino (FI), Italy
4
High Institute of Telecommunications and Post, Al Salihiya, Baghdad, Iraq
5
Dipartimento di Fisica, Università di Firenze, via Sansone 1, 50019 Sesto Fiorentino (FI), Italy
Corresponding author: marzena.ciszak@inoa.it
Received:
2
March
2010
Revised:
12
March
2010
Published online:
6
April
2010
The dynamics of a semiconductor laser with AC-coupled nonlinear optoelectronic feedback has been experimentally studied. A period doubling sequence of small periodic and chaotic attractors is observed, each of them displaying excitable features. This scenario is found also in a simplified physical model of the system, thus extending the concept of excitability, usually associated to fixed points, also to the case of higher-dimensional attractors.
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2010
