一种基于二阶非线性级联的新颖全光开关

利用光子流概念研究了三波混频中本征模状态的相位和光子流的变化,以及该状态对光波的初始相位和初始光子流的要求,研究了三波混频中只有光子流的交换却没有相位变化的特殊状态,提出了本征模状态推拉式非线性光环镜的全光开关,并数值计算了这种全光开关的性能,数值结果表明,该光开关的性能稳定性好,并且易于实现和控制输出信号光的光强及相位. 关键词： 二阶非线性 级联 全光开关 光子流 三波混频 非线性光环镜

A NOVEL ALL-OPTICAL SWITCH BASED ON THE CASCADING OF SECOND-ORDER NONLINEARITY

By employing the concept of photon flux,the evolution of the phase and photon flux in the eigenmode state in three\|wave mixing,and the requirements for the initial phase and photon flux in this state,are studied in the paper.A special state in which there are only exchanges of the photon flux but no phase variations in the three\|wave mixing process is investigated.An all\|optical switch based on the eigenmode pushpull nonlinear\|optical\|mirror is presented,and the properties of this all\|optical switch are numerically calculated.The numerical results show that the performance stability is extremely good,and the intensity and phase of the output signal beams can be easily realized and controlled.