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本文用变分法对色散补偿技术中超短脉冲的传输特性进行了理论和数值分析－ 首先给出了描述超短脉冲传输特性的耦合微分方程组，然后对其进行数值求解－ 计算中考虑了光纤非线性系数的差异，首次引入平均非线性系数参量－ 分析表明，要想达到最佳的传输性能，不同的色散补偿方案，对超短脉冲的入纤能量将有不同的要求－ 最后给出超短脉冲最佳的入纤能量与其脉宽、色散参量比、光纤长度，以及平均色散参量间的关系图－
In this paper, the variational method is used to theoretically and numerically analyze the transmission characteristics of ultrashort pulses in the dispersion compensation technique. Firstly, the coupled differential equations describing the transmission characteristics of ultrashort pulses are given and then numerically solved - Differences in non-linear coefficients, for the first time introduced the average non-linear coefficient parameters - analysis shows that, in order to achieve the best transmission performance, different dispersion compensation scheme for the ultrashort pulse into the fiber energy will have different requirements - the final given super Short pulse best fiber energy and its pulse width, dispersion parameter ratio, fiber length, and the average dispersion parameters between the diagram -