用龙格-库塔算法对描述超高斯脉冲在光纤中传输的微分方程组进行了数值求解,数值结果表明归一化二阶色散系数的大小合适且初始啁啾较小时脉冲的脉宽和频率啁啾随距离振荡演化,脉冲的频率和相位则出现随传输距离增大而增大的抖动.求出了高斯脉冲的锐度因子为不同值(小于等于7)能使超高斯脉冲在光纤中持续保形传输的归一化二阶色散系数和初始啁啾大小条件(小于10-4),当二阶色散系数太大或太小或初始啁啾太大时脉冲在传输过程中各重要参量都会严重偏离它们的初始值.
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