Interference of laser pulses is an essential ingredient of quantum randomness; therefore, probabilistic properties of laser pulses gains new relevance. Here, we consider in detail the combined influence of the three effects – chirp, jitter and relaxation oscillations – on the probability density function of the interference of pulses from a gain-switched semiconductor laser. We develop a rigorous model based on laser rate equations and demonstrate that only consideration of all these three effects together allows describing the interference statistics properly. We supplement our theoretical calculations with corresponding measurements at various pump currents. Experimental results demonstrate perfect agreement with predictions of the model and are well reproduced by Monte-Carlo simulations.

中文翻译：

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线性调频脉冲，抖动和弛豫振荡对激光脉冲干涉概率特性的影响

激光脉冲的干扰是量子随机性的重要组成部分。因此，激光脉冲的概率性质获得了新的意义。在这里，我们详细考虑consider，抖动和张弛振荡这三种效应对增益转换半导体激光器脉冲干扰的概率密度函数的综合影响。我们基于激光速率方程式开发了一个严格的模型，并证明仅考虑所有这三种影响，才能正确描述干涉统计数据。我们用各种泵电流下的相应测量值来补充理论计算。实验结果证明与模型的预测完全吻合，并且通过蒙特卡洛模拟得到了很好的再现。