Research On Spatiotemporal Chaos Control Of Asymmetric Coupling Photorefractive Oscillator

The spatiotemporal chaos in the asymmetric coupled ring cavity photorefractive oscillator is investigated with coupled mapping lattice model.The spatiotemporal chaos control of the asymmetric coupled ring cavity photorefractive oscillator is studied by external additional light field and light intensity control.The space-time evolution of the asymmetric coupled ring cavity photorefractive oscillator is analyzed in chapter 2.The one-dimensional asymmetric coupled ring cavity photorefractive oscillator system is converted into spatiotemporal chaos through warping and intermittent chaotic diffusion with different parameters.The two-dimensional asymmetric coupled ring cavity photorefractive oscillator system effect of time and system parameters on the spatiotemporal dynamics of is converted into spatiotemporal chaos through symmetry broken with time.The spatiotemporal chaos control of the asymmetric coupled ring cavity photorefractive oscillator system with the external additional light field is researched in chapter 3.The spatiotemporal chaos of one-dimensional and two-dimensional asymmetric coupled ring cavity photorefractive oscillator system is controlled into a stable space-time period by external steady light field or chaotic light field.It is controlled into intermittent period by pulse field.The spatiotemporal chaos control of the asymmetric coupled ring cavity photorefractive oscillator system is investigated with light intensity adjust and control method in chapter 4.By selecting appropriate controlling light intensity,the spatiotemporal chaos of one-dimensional and two-dimensional asymmetric coupled ring cavity ring cavity photorefractive oscillator system is controlled into a stable space-time period.Due to the different light intensity selected,the periodic state is different.