基于耦合模理论,通过对耦合波方程进行相位共轭变换,将反向耦合波方程变换为Riccati微分方程,利用数值解法对常耦合系数和高斯型耦合系数线性啁啾光栅的反射特性、色散特性和时延特性进行了详细分析,为设计具有理想效果的色散补偿器件提供了有效的理论方法。

Based on coupled mode theory, we reduce the contradirectional coupled mode equation to Riccati differential equation by means of phase conjugate transform. The reflectivity, dispersion, time delay characteristics with constant coupling coefficient and Gaussian taper function coupling coefficient of linearly chirped gratings are analysed numerically. It provides an effective theoretical approach for design of desired chromatic dispersion compensator.