高速调制光束的互泵浦相位共轭器的研究

Research of MPPC for Speedily Modulated Beams

利用光折变晶体中高速振幅调制光束的简并四波混频（ＤＦＶＶＭ）理论和互泵浦相位共轭器（ＭＰＰＣ）的两作用区模型，对高速振幅调制光束的ＭＰＰＣ进行研究，给出了ＭＰＰＣ的共轭反射率、透过率以及作用区中光扇开系数的表示式及数值结果．实验上所得到的互泵浦相位共轭光的规律与理论相吻合．

Combining DFWM theory of speedily amplitude- modulated beams inphotorefractive crystal with the model of two-interaction regions for the mutually pumpedphase conjugntor(MPPC),a theory of bird-wing MPPC(BWMPPC) for speedilyamplitude-modulated beams is given.Some important parameters(Conjugate reflectivity,transmittivity and fanning-coefficient) are obtained by numerical methods.Theexperimental result shows that the characteristic of a MPPC coincides with that predicted bythe theory.