导出了一种用系统10%—90%上升时间所表示的最坏情况下多模光纤色散功率代价的计算方法。
An approach for the calculation of the worst-case dispersion penalty of multimode fiber links was derived. The approach is expressed by 10%-90% rise time of the system.
多模光纤存在严重的模式色散，其带宽距离积受限。为此，分析了多模光纤的带通特性。
Becouse multimode fiber has high modal dispersion which limits to its bandwidth distance product, the band pass characteristics of the multimode fiber was analyzed.
文章比较了多模光纤和塑料光纤的结构参数和模式数量，并对大量的模式色散会严重限制光纤的带宽作了分析。
The normalized birefringence and modal dispersion as functions of normalized frequency for different aspect ratios are presented and compared with Guassian approximation.
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