The results show that the anomalous chromatic dispersion in 40.0km SMF can be suppressed by SPM with the increased incident power up to 15.0dBm.

• 增加入纤功率能在一定程度上抑制色散效应 ；当入纤功率为 1 5dBm时 ；对于 4 0 .；0km的单模光纤；自相位调制效应和色散恰好抵消；功率代价接近为零。