掺杂非线性光纤中的灰孤子
Grey solitons in doped nonlinear fibers
摘要：
得到了描述掺杂非线性光纤耦合系统的精确解，具有复包络的灰孤立子。相位自由度在消除tanh-sech成对脉冲上的限制性等频条件方面起着至关重要的作用，这一点在前面已经确定[1]。交叉相位调制被发现控制灰孤子的速度，它有一个上限。得到的耦合孤子解在很宽的参数范围内是稳定的。
英文摘要：
Grey solitons, with complex envelope, are obtained as exact solutions of the coupled system describing doped optical nonlinear fibers. The phase degree of freedom plays a crucial role in removing the restrictive equal frequency conditions on the tanh-sech paired pulses, identified earlier [1]. The cross-phase modulation is found to control the speed of the grey soliton, which has an upper bound. The coupled soliton solution obtained here was found to be stable in a wide parameter range.
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