Both the modal dispersion characteristics and cut off conditions are investigated through numerical and analytical approach.
我们利用数值和解析的手段对模式色散和截止特性作了细致的研究。
Becouse multimode fiber has high modal dispersion which limits to its bandwidth distance product, the band pass characteristics of the multimode fiber was analyzed.
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。
The normalized birefringence and modal dispersion as functions of normalized frequency for different aspect ratios are presented and compared with Guassian approximation.
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。
A new multiplexing technique for polymer optical fiber is proposed, which is based on the principle that selective excitation can effectively decrease the modal dispersion and increase the bandwidth.
根据选择性激发能够有效减少模式色散从而能提高带宽的原理，提出了一种针对塑料光纤通信的新复用技术。
Modal characteristic equations of mode HE11, TE01, TM01 are analysed with numerical method and their dispersion curves are given.
对HE11、TE01、TM 01三个低阶模的特征方程进行了数值计算，给出了它们的色散曲线。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
基于小波变换和模态声发射理论，通过模态声发射试验的方法确定了管道中导波传播的频散特性。
Based on the wavelet transformation and the theory of modal acoustic emission, the dispersion of guided wave propagated in thin plate was investigated by acoustic emission experiment.
基于小波变换和模态声发射理论，通过模态声发射试验的方法确定了管道中导波传播的频散特性。
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