Scientific Results

Information encoding in a chaotic laser

Year: 2003

Authors: Marino I.P., Allaria E., Meucci R., Boccaletti S., Arecchi F.T.

Autors Affiliation: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Florence, Italy;
Departamento de Ciencias Experimentales e Ingenieria, Universidad Rey
Juan Carlos, Mostoles, Madrid, Spain;
Department of Physics, University of Florence, Italy

Abstract: In this work we describe a simple method of encoding in real time information in the inter-spike intervals of a homoclinic chaotic system. This has been experimentally tested by means of an instantaneous synchronization between the laser intensity of a CO2 laser with feedback in the regime of homoclinic chaos and an external pulsed signal of very low power. The information is previously encoded in the temporal intervals between consecutive pulses of the external signal. The value of the inter-pulse intervals is varied each time a new pulse is generated.

Conference title:
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KeyWords: Carbon dioxide lasers; Chaos theory; Encoding (symbols); Gaussian noise (electronic); Information retrieval; Mapping; Synchronization, Chaotic dynamics; Chaotic lasers; Information encoding, Laser pulses
DOI: 10.1117/12.531123

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