title: Synchronization of delay-coupled oscillators: a study of semiconductor lasers.
abstract: 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 the universal character of our findings for delay-coupled systems.
authors.affiliation: Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, 12489 Berlin, Germany.
authors.forename: H-J
authors.initials: HJ
authors.lastname: Wünsche
authors.forename: S
authors.initials: S
authors.lastname: Bauer
authors.forename: J
authors.initials: J
authors.lastname: Kreissl
authors.forename: O
authors.initials: O
authors.lastname: Ushakov
authors.forename: N
authors.initials: N
authors.lastname: Korneyev
authors.forename: F
authors.initials: F
authors.lastname: Henneberger
authors.forename: E
authors.initials: E
authors.lastname: Wille
authors.forename: H
authors.initials: H
authors.lastname: Erzgräber
authors.forename: M
authors.initials: M
authors.lastname: Peil
authors.forename: W
authors.initials: W
authors.lastname: Elsässer
authors.forename: I
authors.initials: I
authors.lastname: Fischer