The synchronization of chaotic lasers was studied considering the coupling scheme with the intensity of light pulses from one laser saturating the other one. The experimental synchronization of two single mode lasers with saturable absorber is reviewed. Numerical simulations are presented for diode lasers made chaotic by optical feedback. Optical intensity saturation coupling was introduced in Lang–Kobayashi equations. Parameters were chosen such that both lasers were uncorrelated and chaotic before coupling and partially synchronize after coupling. Correlation functions for the numerical solutions were used to characterize the properties of the synchronism. They show partial in-phase and antiphase synchronism for the pulse intensities, depending on the coupling mechanism. These synchronisms are independent of optical interferometric effects and so, relevant for communication applications.
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March 2003
Research Article|
March 01 2003
Intensity coupling and synchronization of chaotic lasers
Hugo L. D. de S. Cavalcante;
Hugo L. D. de S. Cavalcante
Departamento de Fı́sica, Universidade Federal de Pernambuco, 50670-901 Recife, PE Brazil
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J. R. Rios Leite
J. R. Rios Leite
Departamento de Fı́sica, Universidade Federal de Pernambuco, 50670-901 Recife, PE Brazil
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Chaos 13, 209–216 (2003)
Article history
Received:
May 29 2002
Accepted:
September 30 2002
Citation
Hugo L. D. de S. Cavalcante, J. R. Rios Leite; Intensity coupling and synchronization of chaotic lasers. Chaos 1 March 2003; 13 (1): 209–216. https://doi.org/10.1063/1.1525127
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