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Lag times and parameter mismatches in synchronization of unidirectionally coupled chaotic external cavity
E M Shahverdiev1, S Sivaprakasam, K A Shore
1School of Informatics, University of Wales-Bangor, Dean Street, Bangor, LL57 1UT, Wales, United Kingdom.
Abstract:
We report an analysis of synchronization between two unidirectionally coupled chaotic external cavity master and slave semiconductor lasers with two characteristic delay times, where the delay time in the coupling is different from the delay time in the coupled systems themselves. We demonstrate that parameter mismatches in photon decay rates for the master and slave lasers can explain the experimental observation that the lag time is equal to the coupling delay time.