利用魏格纳分布对光脉冲在40Gbit/s系统中传输特性的研究

The study of pulse propagation in 40Gbit/s system by time-frequency (Wigner) analysis

使用时频域联合分析的方法对光脉冲在40Gbit/s光纤通信系统中的传输特性进行了分析。在进行时频域联合分析时,利用著名的魏格纳分布。利用魏格纳分布的时频域联合分析是在时频交合平面上对光脉冲进行分析,即光脉冲在此平面上同时是时间和频率的二维函数。具体实例证明,这个独有的属性使得基于魏格纳分布的时频域联合分析法能够提供信号的各个频谱分量的时域分布,即提供了各个频谱分量的瞬时特性。为此,利用魏格纳分布的时频联合分析法可以较为全面地描述光脉冲的信息,进而较为全面地描述光纤通信系统的性能。

Time-frequency（Wigner） analysis is applied to the study of pulse propagation in 40Gbit/s system.The Wigner distribution provides an improved joint TF resolution which is a critical aspect for extracting detailed information about the events under analysis from the resultant images.Wigner analysis is demonstrated to be an extremely powerful tool for investigating pulse propagation dynamics in optical fiber,providing a clearer and deeper insight into the physical phenomena that determine the behavior of these systems.