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Phys Rev Lett. 2012 May 25;108(21):214101. Epub 2012 May 23.

Controlling synchronization in large laser networks.

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Department of Physics of Complex Systems, Weizmann Institute of Science, Rehovot 76100, Israel.


Synchronization in large laser networks with both homogeneous and heterogeneous coupling delay times is examined. The number of synchronized clusters of lasers is established to equal the greatest common divisor of network loops. We experimentally demonstrate up to 16 multicluster phase synchronization scenarios within unidirectional coupled laser networks, whereby synchronization in heterogeneous networks is deduced by mapping to an equivalent homogeneous network. The synchronization in large laser networks is controlled by means of tunable coupling and self-coupling.

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