光脉冲传输方程中不同傅立叶变换形式的讨论和仿真分析

Simulation Study on Transmission Performance of Chirped RZ Code in Fiber

对光脉冲传输过程中的准单色光波正负频表示、傅立叶变换的正负频形式进行分析,由此得出了两种不同表示形式的光脉冲传输方程.指出了在采用分步傅立叶法进行数值仿真时必须采用正确形式,并结合实例验证了讨论结果.

In the paper, the positive and negative frequency expressions of optical wave, the positive and negative frequency forms of Fourier transformations are discussed. Two different forms of optical pulse＇ transmission equation are obtained. When the equation is solved using numerical methods, the positive frequency form of fast Fourier transformation must be adopted. The simulink results are given, which confirm the obtained result.