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首页> 外文期刊>IEE Proceedings. Part J >Modelling pulse propagation in semiconductor optical amplifiers using wavelets
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Modelling pulse propagation in semiconductor optical amplifiers using wavelets

机译:使用小波对半导体光放大器中的脉冲传播进行建模

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摘要

A model based on the discrete wavelet transform is presented for the description of short pulse propagation in semiconductor optical amplifiers. The approach is used to analyse amplifier performance taking account of gain saturation, carrier heating, group velocity dispersion and self phase modulation. Using parameters obtained from fitting to experimental data, simulations are performed that compare well with measured results for semiconductor optical amplifiers and show good agreement with other modelling approaches. The wavelet transform leads naturally to a time-scale representation of the pulse evolution, where the signal is split into a coarse approximation together with a series of local refinements that reveal pulse fine structure which is not apparent in the time domain.
机译:提出了一种基于离散小波变换的模型,用于描述半导体光放大器中的短脉冲传播。该方法用于分析放大器性能,并考虑到增益饱和,载流子发热,群速度色散和自相位调制。使用从拟合到实验数据获得的参数,进行了仿真,该仿真与半导体光放大器的测量结果进行了很好的比较,并显示出与其他建模方法的良好一致性。小波变换自然导致了脉冲演化的时标表示,其中信号被分解为粗略的近似值,并伴随一系列局部细化,揭示了在时域中不明显的脉冲精细结构。

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