Synchronization in semiconductor laser rings

Details Synchronization in semiconductor laser rings Synchronization in semiconductor laser rings

2006-10-06

arxiv.org/abs/nlin/0610014v1

Nonlinear Sciences

Chaotic Dynamics

15 pages, 7 figures

Scientific paper

We examine the dynamics of semiconductor lasers coupled in a ring configuration. The lasers, which have stable output intensity when isolated, behave chaotically when coupled unidirectionally in a closed chain. In this way, we show that neither feedback nor bidirectional coupling is necessary to induce chaotic dynamics at the laser output. We study the synchronization phenomena arising in this particular coupling architecture, and discuss its possible application to chaos-based communications. Next, we extend the study to bidirectional coupling and propose an appropriate technique to optical chaos encryption/decryption in closed chains of mutually coupled semiconductor lasers.

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