Study Of He-Ne Laser Chaos Phase Conjugate Feedback Control Method

The chaos phenomenon reveals the nature and human society which kept verycommon complexity, sometimes chaotic motion is exactly the goal we are pursuing,and when the chaotic motion harmful, we need to make the system run by suppressingchaos to the normal and orderly state. Due to the chaotic movement has very sensitiveto initial conditions and the unpredictability of long-term behavior, chaos control hasbecome an important part of the chaotic applications. The purpose of the chaos iscontrolled by the control methods to eliminate or suppress chaos chaotic phenomena,in order to enable the system to enter the orderly periodic motion. Instability of thelaser is a common phenomenon, and chaos is important exception laser instability,chaos laser as a special form of laser output. By exploring the laser can produce chaosin the law, the use of chaos control and anti-control technology; we can achieve thepurpose of control optical chaos. This paper mainly studies the chaotic control ofHe-Ne laser, time reversal method and the characteristics of phase conjugate control inthe application of phase conjugate feedback, a phase conjugate feedback control model,numerical simulation of chaos control system.The paper introduces the status quo and phase conjugate feedback research statusand application of optical chaos control method and He-Ne laser; the optical theory,chaotic phase conjugate correlation and phase conjugation wave generation method;The conventional optical feedback and phase conjugate feedback are compared andanalyzed, the chaotic laser phase conjugate feedback control method, has establishedthe control model of phase conjugate feedback; with kinetic equation derived from alaser, He-Ne laser on the phase conjugate feedback control under the system dynamicsequation; Because the phase conjugate feedback control has the features of timereversal, by adjusting the feedback time and feedback intensity of two parameters, thechaotic state of the system to control chaotic and periodic states; according to thephase conjugate feedback control model and dynamics equation, using MATLABsimulation software for helium neon laser chaos phase conjugate feedback controlprocess the simulation analysis, results show that the phase conjugate feedback controlmethod can be applied to the chaos control of He-Ne laser, by choosing appropriate parameters, real-time, dynamic, effectively control chaotic lasing to steady states andperiodic states.