Abstract

Chaos synchronisation lias been attractive over the last decade due to a potential of application to secure optical communications. A number of chaotic encryption systems have been reported using semiconductor lasers such as Fabry-Perot, DFB and VCSEL, e.g. [1]. Self-pulsating laser diodes have been widely used for optical storage devices such as CD and DVD players. A few demonstrations of synchronisation have been reported using such laser diodes. In these demonstrations synchronisation was achieved between the pulses of two self-pulsating laser diodes driven by external modulation [2], However, their pulses were not chaotic. In this work, synchronisation of chaotic pulse- sequences has been achieved using self-pulsating laser diodes.

© 2007 IEEE