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Correlations in electrically coupled chaotic lasers.
Rosero, E J; Barbosa, W A S; Martinez Avila, J F; Khoury, A Z; Rios Leite, J R.
Affiliation
  • Rosero EJ; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Cidade Universitária, Recife, PE, Brazil.
  • Barbosa WA; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Cidade Universitária, Recife, PE, Brazil.
  • Martinez Avila JF; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Cidade Universitária, Recife, PE, Brazil.
  • Khoury AZ; Departamento de Física, Universidade Federal de Sergipe, Av. Marechal Rondon, S/N Jardim Rosa Elze, 49100-000 São Cristóvão, SE, Brazil.
  • Rios Leite JR; Departamento de Física, Universidade Federal de Pernambuco, 50670-901 Cidade Universitária, Recife, PE, Brazil.
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
Search on Google
Collection: 01-internacional Database: MEDLINE Language: En Journal: Phys Rev E Year: 2016 Document type: Article Affiliation country: Brasil