MODULATION INSTABILITY INDUCED BY CROSS-PHASE MODULATION
MODULATION INSTABILITY INDUCED BY CROSS-PHASE MODULATION
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DOI：
10.1103/physrevlett.59.880
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发表时间：
1987-08-24
影响因子：
8.6
通讯作者：
AGRAWAL, GP
中科院分区：
文献类型：
--
作者：
AGRAWAL, GP
只有在存在反常群速度色散的情况下，调制不稳定性才会导致强连续波辐射在光纤中传播时分裂成一串超短脉冲。结果表明，当两个同向传播光场通过非线性引起的交叉相位调制相互作用时，即使在正常色散区也会出现一种新的调制不稳定性。这种交叉相位调制引起的调制不稳定性的定量方面进行了讨论和说明使用一个现实的实验例子。
Modulation instability that leads to breakup of intense cw radiation into a train of ultrashort pulses during propagation in optical fibers occurs only in the presence of anomalous group-velocity dispersion. It is shown that a new kind of modulation instability can occur even in the normal-dispersion regime when two copropagating optical fields interact with each other through cross-phase modulation initiated by the nonlinearity. The quantitative aspects of this cross-phase–modulation–induced modulation instability are discussed and illustrated by use of a realistic experimental example.