本文在理论上给出了对二维R-N(喇曼-奈斯)型声光作用的光学双稳系统普遍适用的动态方程,并由此导出了该声光光学双稳系统的稳态解,借助于计算机给出了取(1,0)级作为反馈级次情况下的几个级次输入～输出关系曲线,并对此进行了稳定性分析;在实验上对该理论进行了验证,实验结果与理论相符.

Universal dynamic equation of optical Instability in Raman-Nath acousto-optic modulator is deduced. The stable solution to it derived. Using computer, when (1, 0) order diffraction light is used as feedback, the output-input curves is calculated. The stable condition is analysed. The experiment has been done, its results is correspondent with the theory.