Abstract
In the absence of optical isolation, semiconductor lasers (SLs) are
susceptible to external perturbations that determine the dynamical properties
of the generated signals. Mutually coupled SL systems have been proved to
exhibit diverse dynamics with the potential to behave synchronously. In this
study, a multinodal star all-optical network topology is investigated in terms
of synchronization and robustness; 50 SLs with varied operating frequencies
around a central frequency $\omega_{0}$ operate as star nodes and mutually interact with a central SL (hub)
through optical injection signals and under specific conditions exhibit a
synchronized behavior. Additional nodes that are subsequently connected to
the network or nodes that disconnect from the network do not alter the dynamical
behavior and the robustness of the system. Especially for the newly connected
nodes, appropriate optimization in their operating conditions includes them
in the synchronized cluster.
© 2012 IEEE
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