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本文对非线性单模光纤中的调制不稳定性进行了详细研究,给出了调制不稳定性产生的条件与最大调制增长率等公式,得到了调制不稳定性既可在异常色散区也可在正常色散区产生的结论,确定了维持调制增长对光纤长度选取要求的范围.
In this paper, the modulation instabilities in a nonlinear single-mode fiber are studied in detail. The conditions for the modulation instability and the maximum modulation growth rate are given. The modulation instabilities are obtained either in the anomalous dispersion region The conclusion resulting from the normal dispersion region confirms the range of fiber length requirements for maintaining modulation growth.