论文标题
分级索引光纤中的多模孤子碰撞
Multimode soliton collisions in graded-index optical fibers
论文作者
论文摘要
在这项工作中，我们通过仿真和实验推出了分级 - 指数光纤中多模词的独特复杂动力学。通过从输入飞秒脉冲的裂变中生成两个多模词，我们检查了当输入脉冲能量生长更大时，我们检查了其拉曼引起的红移的演变。值得注意的是，我们发现可以减少尾随多模词的输出红移，从而使其加速直到它与领先的多模孤子碰撞。由于非弹性碰撞，两个多模词孔之间发生了显着的能量转移：尾随的孤子捕获了主要孤子的能量，这最终增强了其红移，从而增加了两个多模词孤子之间的时间分离。
In this work, we unveil the unique complex dynamics of multimode soliton interactions in graded-index optical fibers through simulations and experiments. By generating two multimode solitons from the fission of an input femtosecond pulse, we examine the evolution of their Raman-induced red-shift when the input pulse energy grows larger. Remarkably, we find that the output red-shift of the trailing multimode soliton may be reduced, so that it accelerates until it collides with the leading multimode soliton. As a result of the inelastic collision, a significant energy transfer occurs between the two multimode solitons: the trailing soliton captures energy from the leading soliton, which ultimately enhances its red-shift, thus increasing temporal separation between the two multimode solitons.
