Usage of Optical Chaos for Diode Laser Networks a Computer Simulation

Abstract

Chaotic Optical Communication (COC) system is a novel communication scheme that utilizes an optical chaotic waveform as carrier of information, in secure communication applications. In this work, we have studied an implemented AC-couple Optoelectronic Feedback Semiconductor Laser (OEFSL). This work has been expanded to configure 28 laser oscillators network. The physical model of such chaotic system has been demonstrated by means of physical parameters, the time scales of each parameter are different. To solve this problem, a dimensionless transformation has been made. We have started from the creation of the chaotic simulation system, study the properties and determine the control parameters that lead to regular behavior. Chaotic behavior has been generated by selecting the experimental initial conditions for the OEFSL under appropriate conditions. We have a lot consider effectively analyze the behavior of a dynamical system under the influence control parameters. This step has been done by modeling and programming the system above using MATLAB packages. In order to achieve the synchronization condition between master and slave oscillators, a unidirectional coupling configuration is implemented, in this configuration, the coupling between master and slave enables the master oscillator to fully driving and controlling the slave. The master-slave configuration is expanded to implement Optoelectronic Feedback Semiconductor Laser Network (OEFSLN) by means of Simulink environment in MATLAB package to implement 256 chaotic oscillators. The synchronization condition among the all network oscillators has been achieved by means of coupling factor. We consider this approach is very fruitful step to build OEFSLN.