Nonlinear propagation of pulses in multimode fiber with strong linear coupling

被引：0
|
作者：
胡金耀 [1 ,2 ]
何江勇 [1 ]
刘艳格 [1 ]
张露鹤 [1 ]
贺瑞敬 [1 ]
李尧 [2 ]
王志 [1 ,2 ]
机构：
[1] Tianjin Key Laboratory of Optoelectronic Sensor Sensing Network Technology, Institute of Modern Optics, Nankai University
[2] Science and Technology on Solid-State Laser Laboratory
来源：
Optoelectronics Letters | 2020年 / 16卷 / 05期
基金：
中国国家自然科学基金;
关键词：
D O I：
暂无
中图分类号：
TN818 [光纤传输线、光缆];
学科分类号：
0803 ;
摘要：
Multimode fiber has a richer spatial dimension than single-mode fiber, and is an ideal platform for studying many novel nonlinear effects. We established a strong linear coupling and short-range fiber model to understand the interactive effects of linear coupling and nonlinear effects. We find that strong linear coupling can compensate for the group delay between eigenmodes and cause energy fluctuation between modes which weakens the nonlinear effects. In high energy pulses, the interaction of linear coupling and nonlinear effects can help producing weak dispersion waves when the spectrum is broadened. Since linear coupling in a mode group is common and unavoidable, these results may provide a certain theoretical explanation for multi-mode nonlinear phenomena.
引用
收藏
页码：379 / 383
页数：5
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