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Synchronization of Delay-Coupled Oscillators: A Study of Semiconductor Lasers
Physical Review Letters
Two delay-coupled semiconductor lasers are studied in the regime where the coupling delay is comparable to the time scales of the internal laser oscillations. Detuning the optical frequency between the two lasers, novel delay-induced scenarios leading from optical frequency locking to successive states of periodic intensity pulsations are observed. We demonstrate and analyze these dynamical phenomena experimentally using two distinct laser configurations. A theoretical treatment reveals thedoi:10.1103/physrevlett.94.163901 pmid:15904226 fatcat:6t574ofe5nhcvepelmtdvgxkve