Correlations in electrically coupled chaotic lasers.
Phys Rev E
; 94(3-1): 032210, 2016 Sep.
Article
in En
| MEDLINE
| ID: mdl-27739756
ABSTRACT
We show how two electrically coupled semiconductor lasers having optical feedback can present simultaneous antiphase correlated fast power fluctuations, and strong in-phase synchronized spikes of chaotic power drops. This quite counterintuitive phenomenon is demonstrated experimentally and confirmed by numerical solutions of a deterministic dynamical system of rate equations. The occurrence of negative and positive cross correlation between parts of a complex system according to time scales, as proved in our simple arrangement, is relevant for the understanding and characterization of collective properties in complex networks.
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Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Phys Rev E
Year:
2016
Document type:
Article
Affiliation country:
Brasil