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Design and Analysis of Laser Chaotic Communication Based on MATLAB and Optisystem Software
Raghad Ismail Ibrahim and Ghufran I. Ibrahim
This work describes the construction of an electro-optical intensity chaotic communication system using two electro-optical delay feedback loops with parallel architecture. Injecting chaos into chaos produces more complicated chaotic waveforms, increasing the complexity of chaos and the confidentiality of the communication system. This design uses both MATLAB and OptiSystem to work together to model the system, which solves the problem that OptiSystem can’t simulate optical feedback loops. The MATLAB software realizes the electro-optical delay feedback loop, OptiSystem completes the signal transfer in the optical fiber link, and the system receives energy and input signals from its mature laser and binary sequence generation modules. This paper presents the collaborative simulation of chaotic systems using MATLAB and OptiSystem. It is demonstrated that the suggested method for simulating optical feedback loops is feasible, and the performance of the designed chaotic system is excellent, demonstrating the viability of this chaos generation method.
Keywords: Chaotic laser, Co-simulation, electro-optical delay, MATLAB, secure communications, OptiSystem