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Open Access item Zero-lag synchronization and bubbling in delay-coupled lasers

Authors:Tiana-Alsina, Jordi
Hicke, Konstantin
Porte, Xavier
Soriano, Miguel C.
Torrent, M. C.
García-Ojalvo, Jordi
Fischer, Ingo
Issue Date:2012
Publisher:American Physical Society
Citation:Physical Review E 85: 026209 (2012)
Abstract:We show experimentally that two semiconductor lasers mutually coupled via a passive relay fiber loop exhibit chaos synchronization at zero lag, and study how this synchronized regime is lost as the lasers’ pump currents are increased. We characterize the synchronization properties of the system with high temporal resolution in two different chaotic regimes, namely, low-frequency fluctuations and coherence collapse, identifying significant differences between them. In particular, a marked decrease in synchronization quality develops as the lasers enter the coherence collapse regime. Our high-resolution measurements allow us to establish that synchronization loss is associated with bubbling events, the frequency of which increases with increasing pump current.
Description:PACS numbers: 05.45.Xt, 05.45.Jn, 42.65.Sf
Publisher version (URL):http://dx.doi.org/10.1103/PhysRevE.85.026209
E-ISSNmetadata.dc.identifier.doi = DOI:1550-2376
Appears in Collections:(IFISC) Artículos

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