中文摘要：

利用傅立叶方法解非线性薛定谔方程，对单模光纤传输中非线性色散的脉冲展宽进行了研究。通过详细计算，给出了高斯脉冲的均方根宽度以及展宽因子的表达式。同时，作出了光纤内色散造成的高斯脉冲展宽和展宽因子随距离的变换关系图线。并分析研究了光纤色散对不同宽度脉冲的影响。对脉冲压缩技术的研究具有一定的参考价值。

英文摘要：

The pulse broadening of non - linear dispersive in fiber is studied through solving non - linear Schrodinger equation by method of Fourier transform. The expression of root-mean-square impulse width and pulse broadening factor are gaven. While, the figure of pulse broadening and pulse broadening factor are drawed. And the pulse broadening of varied pulse width are analyzed.