本文主要探讨高速光纤通信系统中的定时抖动特性。提出一种计算定时抖动的方差和功率谱密度的方法,讨论了高速光纤系统中模分配噪声对抖动的影响;还探讨了抖动与误码率的关系,给出在有抖动的情况下平均误码率的计算方法;从抑制抖动的角度出发,提出了设计性能良好的定时电路的原则。 This article focuses on timing jitter in high-speed optical fiber communication systems. A method to calculate the variance and power spectral density of timing jitter is proposed. The effect of mode noise distribution on jitter in high-speed optical fiber system is discussed. The relationship between jitter and bit error rate is also discussed. The average error From the viewpoint of suppressing the jitter, the principle of designing the timing circuit with good performance is put forward.