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Polarization mode dispersion of spun fibers: an analytical solution

机译:短纤的偏振模色散:一种分析解决方案

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摘要

A simple analytical solution is derived from coupled-mode theory to describe the evolution of polarization mode dispersion (PMD) in spun fibers. For practical fibers with a beat length greater than a few meters, the solution is valid for a whole category of periodic spin profiles. We find that the PMD change factor is independent of the intrinsic birefringence of the fiber and the fiber PMD scales linearly with the fiber length in the short length regime. This solution allows us to determine phase-matching conditions for spun fibers, in which the PMD evolves periodically along the fiber. An example of determining the phase-matching conditions of sinusoidal-type spin profiles is given.
机译:一个简单的分析解决方案是从耦合模理论推导来描述纺丝光纤中偏振模色散(PMD)的演变。对于拍长大于几米的实用光纤,该解决方案适用于整个周期的自旋分布。我们发现,PMD变化因子与光纤的固有双折射无关,并且在短长度状态下,光纤PMD与光纤长度成线性比例关系。该解决方案使我们能够确定纺出纤维的相位匹配条件,其中PMD沿着纤维周期性地演化。给出了确定正弦型自旋轮廓的相位匹配条件的示例。

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