Abstract
A tunable self-mixing chaotic laser based on high frequency electro-optical modulation is proposed. A laser dynamics system is designed and tested for tunable chaotic laser generation and provides optical feedback and electro-optic modulation with two degrees of freedom. The chaotic laser is generated by optical feedback, and it becomes tunable by high frequency electro-optic modulation. The frequency is modulated from 0 to 6 GHz to test this system, and the spectrum of the chaotic laser is obtained with an electrical spectrum analyzer (ESA). The experimental results show the generation of a wide range of tunable chaotic lasers via electro-optic modulation. At the same time, this tunable chaotic laser has a highly sensitive dynamic response, free regulation, and wide band via adjustments in the feedback intensity and the modulation signal, and this system is proved to be suitable for applications in high-speed broadband communication and sensing.
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