在线性近似条件下，量子化了非线性薛定谔方程，用后向传播法数值求解了初始啁啾对光孤子压缩比的影响。数值结果表明，初始正啁啾在初始一定距离范围内能减小压缩比，理想光孤子的压缩效果最好。 Under the condition of linear approximation, the nonlinear Schrödinger equation is quantized, and the effect of the initial chirp on the soliton compression ratio is solved by the back propagation method. The numerical results show that the initial positive chirp can reduce the compression ratio within a certain initial distance range, and the ideal optical soliton has the best compression effect.