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本文实验研究了 BSO晶体四波混频系统大调制度运动光栅的特性 ,发现它在最佳条纹速度和反射率增强上有类似于两波混频系统大调制度运动光栅的非线性特性 ,并且在最佳泵浦光强比上也完全不同于小调制度运动光栅的情形。研究对于在四波混频实时相关识别中应用多普勒频移技术有指导作用
In this paper, the characteristics of moving grating with large modulation of BSO crystal four-wave mixing system are experimentally studied. It is found that it has nonlinear characteristics similar to that of moving grating with large modulation of two-wave mixing system at optimal stripe speed and reflectivity enhancement. In the best pump light intensity ratio is completely different from the minor modulation motion grating situation. The research is helpful to the application of Doppler shift technique in four-wave mixing real-time correlation recognition