含自频移啁啾超短脉冲间相互作用的数值研究

Numerical Research on the Interaction of Chirped Ultrashort Laser Pulses with Self-frequency Shift

采用拟解法给出了Ginzberg—Landau方程类孤波解的参数表达式 .通过数值模拟对啁啾超短脉冲间的相互作用进行了研究 .结果表明 ,随着相邻孤子间距离的减小 ,它们之间的相互作用变得越来越严重 .传统的不等振幅法在一定程度上可以抑制孤子间的相互作用 ,通过选取合适的振幅比 ,找到了相邻孤子间相互作用平衡的最小距离 ,这对提高光纤传输的比特率具有十分重要的意义 .讨论了多孤子间的相互作用 。

The interaction of chirped ultrashort laser pulses with self-frequency shift is investigated by numerical simulation method. The results show that unequal amplitude method can reduce the interaction between neighboring solitons with chirp. At the same time, the shortest separation between neighboring solitons by unequal amplitude method is found, which is very important to increase byte rate in optical soliton telecommunication systems.