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Published on: May 29, 2014
Isochronal chaos synchronization of delay-coupled optoelectronic oscillators
Lucas Illing1, Cristian D Panda, Lauren Shareshian
1Department of Physics, Reed College, Portland, Oregon 27708, USA. illing@reed.edu
Abstract:
We study experimentally chaos synchronization of nonlinear optoelectronic oscillators with time-delayed mutual coupling and self-feedback. Coupling three oscillators in a chain, we find that the outer two oscillators always synchronize. In contrast, isochronal synchronization of the mediating middle oscillator is found only when self-feedback is added to the middle oscillator. We show how the stability of the isochronal solution of any network, including the case of three coupled oscillators, can be determined by measuring the synchronization threshold of two unidirectionally coupled systems. In addition, we provide a sufficient condition that guarantees global asymptotic stability of the synchronized solution.
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