A 16×16 pixels SPAD-based 128-Mb/s Quantum Random Number Generator with -74dB Light Rejection Ratio and -6.7ppm/°C Bias Sensitivity on Temperature

📋 论文概要

该论文提出了一种基于SPAD（单光子雪崩二极管）的16×16像素量子随机数发生器，实现了128 Mb/s的生成速率，并具有-74dB的光抑制比和-6.7ppm/°C的偏置稳定性，解决了传统随机数发生器在安全通信中易受攻击的问题。

💡 主要创新点

• 采用SPAD阵列实现量子随机数生成，利用光子到达时间的随机性提高随机数质量。
• 通过像素级电路设计实现高光抑制比和温度稳定性，增强系统鲁棒性。

🏷 关键词

📄 原文摘要

Alessio Meneghetti2, Hesong Xu1, Daniele Perenzoni1, Guglielmo Morgari3, David Stoppa1 Fondazione Bruno Kessler, Trento, Italy, 2University of Trento, Povo, Italy, 3Telsy, Torino, Italy 1 A robust true random number generator (TRNG), able to assure high quality output at different working conditions, is an attractive solution in secure communication application, because it increases resilience against possible external attacks. Among different TRNGs, quantum RNGs (QRNG) represent a good candidate for such systems, because of their compactness, low cost and performance [1-6]. They typically consist of a source of photons, such as an attenuated LED, coupled to a detector with single photon capability (SPAD). Many works in the literature have used a single detector [1-4] for random bit extraction. These devices are characterized by a limited bit rate [1], which can be increased by exploiting the arrival time of photons at the cost of circuit and system

👥 作者与机构

Nicola Massari1, Leonardo Gasparini1, Alessandro Tomasi2,