| The dynamics of laser chaos is about the chaotic behavior in laser system, we can study the nonlinear dynamics through it. Laser has all the complex dynamics characteristic of dissipative system, and its degree of freedom can easily be controlled. Therefore, the chaotic characteristic of laser and the control of chaos show a new foreground for laser application, and attracted more and more attention.Laser system with delayed optical feedback appears rather complex dynamics behavior. Therefore, it became a very important method to achieve the chaotic secret communication, and shows a wonderful developmental outlook. In this dissertation, we study the nonlinear dynamics of optical feedback laser system by numerical analysis, and designed a semiconductor laser system with optical feedback to produce chaotic signal and observed the chaotic behavior of the system. Also, we discussed the influence that the laser system affected by changing feedback level and the delayed time. |
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