Title :
Chaos Generation and Synchronization Using an Integrated Source With an Air Gap
Author :
Tronciu, V.Z. ; Mirasso, C. ; Colet, P. ; Hamacher, M. ; Benedetti, M. ; Vercesi, V. ; Annovazzi-Lodi, V.
Author_Institution :
Weierstrass Inst. for Appl. Anal. & Stochastics, Berlin, Germany
Abstract :
We discuss experimentally and numerically the dynamical behavior of a novel integrated semiconductor laser subject to multiple optical feedback loops. The laser´s structure consists of distributed feedback section coupled to a waveguide, an air gap section and two phase sections. It is found that the laser, due to the multiple feedback loops and under certain operating conditions, displays chaotic behaviors appropriate for chaos-based communications. The synchronization properties of two unidirectionally coupled (master-slave) systems are also studied. Finally, we find numerically the conditions for message encryption/extraction using the multiple-feedback lasers.
Keywords :
chaotic communication; cryptography; integrated optics; laser feedback; optical chaos; optical receivers; optical transmitters; optical waveguides; semiconductor lasers; synchronisation; chaos generation; chaos-based communication; integrated semiconductor laser; message encryption; message extraction; multiple optical feedback loops; optical waveguides; synchronization; unidirectionally coupled system; Chaotic communication; Laser feedback; Optical feedback; Optical waveguides; Semiconductor lasers; Synchronization; Air gap; chaos-based communications; multiple feedback; semiconductor lasers;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2010.2049642
