Publication Type:

Journal Article

Source:

Physics Letters A, Elsevier, Volume 277, Number 6, p.345–351 (2000)

URL:

http://www.sciencedirect.com/science/article/pii/S037596010000637X

Abstract:

Results of a numerical study of synchronisation of two directly modulated semiconductor lasers, using bi-directional coupling, are presented. The effect of stepwise increase in the coupling strength (C) on the synchronisation of the chaotic outputs of two such lasers is studied, with the help of parameter space plots, synchronisation error plots, phase diagrams and time series outputs. Numerical results indicate that as C increases, the system achieves synchronisation as well as stability together with an increase in the output power. The stability of the synchronised states is checked by applying a perturbation to the system after it becomes synchronised and then noting the time it takes to regain synchronisation. For lower values of C the system does not regain synchronisation. But, with higher values synchronisation is regained within a very short time.

Cite this Research Publication

V. Bindu and Dr. V . M. Nandakumaran, “Numerical studies on bi-directionally coupled directly modulated semiconductor lasers”, Physics Letters A, vol. 277, pp. 345–351, 2000.

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