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The authors report on partial and global generalised synchronisation in exemplar bi-directionally coupled non-identical chaotic systems with multiple time delays. The authors derive conditions for such synchronisation regimes. The general approach is applied to the case of multiple time-delay laser systems with electro-optical feedback. The authors also study the effect of signal sampling on the signatures...
By studying the autocorrelation function of the opto-electronic feedback semiconductor laser output the authors establish that the signatures of time delays can be erased in systems incorporating modulated feedback time delays. This property is of importance for the suitability of such laser systems for secure chaos-based communication systems. The authors also make the first report on chaos synchronisation...
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