Taken into account both second order dispersion and SPM in the abnormal-dispersion region of single-mode fibers, we obtained the expression of chirp induced by GVD and SPM.

• 应用付里叶变换法,求解了非线性薛定谔方程,得出了单模光纤在正、反常色散区域中二阶群速度色散(GVD)效应所致啁啾的解析表达式。