Single-photon detection concept is the most crucial and often difficult factor to determine the performance of quantum key distribution (QKD) systems. One solution to facilitate understanding this concept is to create a virtual environment for modeling, analyzing, and investigating the performance of single photon detectors. In this paper, a simulator for superconducting single photon detectors with time domain visualizer and configurable parameters is presented. The widely used ID281SNSPD in the QKD area was theoretically modeled in terms of pulse analysis, the impact of biasing current and the temperature on the dark counts rate and single photon-detection efficiency and influence of the number of photons per pulse on the single photon-detection efficiency. The simulated results were in good agreement with the theoretical results and the simulator demonstrated its adaptability.

中文翻译：

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一种用于 QKD 系统的 SNSPD 的高效性能评估建模工具

单光子检测概念是确定量子密钥分发 (QKD) 系统性能的最关键也是最困难的因素。一种有助于理解这一概念的解决方案是创建一个虚拟环境，用于建模、分析和研究单光子探测器的性能。在本文中，提出了一种具有时域可视化器和可配置参数的超导单光子探测器模拟器。在 QKD 领域广泛使用的 ID281SNSPD 在脉冲分析、偏置电流和温度对暗计数率和单光子检测效率的影响以及每个脉冲的光子数对单光子的影响方面进行了理论上的建模。检测效率。