Lyapunov exponent of chaos generated by acousto-optic modulators with feedback

Anjan K. Ghosh; Pramode Verma

doi:10.1117/1.3530105

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1 January 2011 Lyapunov exponent of chaos generated by acousto-optic modulators with feedback

Anjan K. Ghosh, Pramode Verma

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Optical Engineering, 50(1), 017005 (2011). https://doi.org/10.1117/1.3530105

Abstract

Generation of chaos from acousto-optic modulators with an electronic feedback has been studied for several years. Such chaotic signals have an important application in providing secure encryption in free-space optical communication systems. Lyapunov exponent is an important parameter for analysis of chaos generated by a nonlinear system. The Lyapunov exponent of an acousto-optic system is determined and calculated in this paper to understand the dependence of the chaotic response on the system parameters such as bias, feedback gain, input intensity and initial condition exciting the cell. Analysis of chaos using Lyapunov exponent is consistent with bifurcation analysis and is useful in encrypting data signals.

©(2011) Society of Photo-Optical Instrumentation Engineers (SPIE)

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Anjan K. Ghosh and Pramode Verma "Lyapunov exponent of chaos generated by acousto-optic modulators with feedback," Optical Engineering 50(1), 017005 (1 January 2011). https://doi.org/10.1117/1.3530105

Published: 1 January 2011

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