为在光纤孤子的应用装置中讨论孤子稳定性和相互作用,数值研究了变系数耦合非线性薛定谔方程组.结果表明:微孤子相互作用存在于具有周期分布的色散和非线性参量的PT对称非线性耦合器中.在不同初始条件下,包括同相输入的两个或三个等幅孤子、含反相二孤子输入的三孤子,都存在这样的微孤子相互作用.讨论了有限初始扰动下微孤子相互作用的稳定性,结果表明有限初始扰动不会影响微孤子相互作用的主要特征.
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