Scientific Results

High chaotic spiking rate in a closed loop semiconductor laser with optical feedback

Year: 2016

Authors: Rasheed B.O., Aljaff P.M., Al-Naimee K.A., Al Hasani M.H., Meucci R.

Autors Affiliation: Istituto Nazionale di Ottica, Largo E. Fermi 6, Firenze, 50125, Italy; Department of Physics, School of Science, Faculty of Science and Science Education, Sulaimani University, Sulaimani, Iraq; Department of Physics, College of Science, Baghdad, Iraq

Abstract: We investigate experimentally and numerically the existence of fast chaotic spiking in the dynamics of a semiconductor laser with ac-coupled optical feedback. The observed dynamics is chaotic in the explored range of both bias current optical feedback strength. The effects of a modulation applied to the bias current are also investigated. We eventually indicate that the observed chaotic dynamics is a good candidate to hide information to satisfy secure communications.


Volume: 6      Pages from: 401  to: 406

KeyWords: Chaos; Optical feedback; Spiking
DOI: 10.1016/j.rinp.2016.07.006

Citations: 2
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