利用光脉冲在光纤中传播时所遵守的相干非线性薛定谔耦合方程,研究了偏振方向沿两个双折射轴的分量强度相等时,在反常色散区和正常色散区所产生的调制不稳定性.结果表明在反常色散区和正常色散区,对应不同的功率区域输入脉冲有不同的增益谱,并且当双折射性质变化时导致增益谱表现出明显的不同.
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