State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China.
Opt Lett. 2012 Sep 1;37(17):3546-8. doi: 10.1364/OL.37.003546.
We propose and describe a physical model of polarization-dependent principal modes (PDPMs) in a given setting of dual-LP11 mode and dual-polarization transmission over weakly guiding few-mode fibers (FMFs). Proof-of-concept numerical simulations illustrate that the PDPMs do not suffer from both mode dispersion and polarization mode dispersion to first order of frequency variation, even in the presence of random spatial- and polarization-mode coupling. The proposed PDPM model can be a basic formalism for analyzing and controlling of mode coupling/dispersion-induced distortion, in the given optical multiple-input multiple-output scheme of dual-LP11 mode and dual-polarization transmission over FMFs.
我们提出并描述了一种在弱导少模光纤（FMF）中双 LP11 模式和双偏振传输的给定设置下，偏振相关主模式（PDPM）的物理模型。基于概念的数值模拟表明，PDPM 不受模式色散和偏振模式色散的影响，即使在随机空间和偏振模式耦合存在的情况下，其频率变化也仅为一阶。在所提出的双 LP11 模式和双偏振传输的光多输入多输出方案中，PDPM 模型可以作为分析和控制模式耦合/色散引起的失真的基本形式。
