采用分裂步长Fourier变换法.数值研究了反常色散区线性极化下非等相耦合孤子和正常色散区圆极化耦合暗孤子的相互作用.并结合孤子相互作用的等价粒子理论及流体孤子类比方法.分析了耦合孤子相互作用机理及成因。研究表明，耦合孤子相互作用过程中，不仅存在单通道中孤子间的相互作用，还存在不同通道中孤子间的交叉相互作用。

The interaction of both nonequal-amplitude coupled linear-polarization solitons inanomalous dispersion region and coupled round-polarization dark solitons in normaldispersion region is numerically investigated by the split-step Fourier transformationmethod. The mechanism and the cause of the interaction are analyzed. The results show thatthe interaction of coupled solitons exists not only in the same channel, but also in the'different channel. For the latter,it is a cross interaction.