Self-balanced real-time photonic scheme for ultrafast random number generation
Self-balanced real-time photonic scheme for ultrafast random number generation
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DOI：
10.1063/1.5029498
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发表时间：
2018-05
期刊：
影响因子：
5.6
通讯作者：
Pu Li;Yanqiang Guo;Yanqiang Guo;Yuanlong Fan;Xiaomin Guo;Xianglian Liu;K. Shore;E. Dubrova;Bingjie Xu;Yuncai Wang;Anbang Wang
中科院分区：
文献类型：
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作者：
Pu Li;Yanqiang Guo;Yanqiang Guo;Yuanlong Fan;Xiaomin Guo;Xianglian Liu;K. Shore;E. Dubrova;Bingjie Xu;Yuncai Wang;Anbang Wang
我们提出了一种实时自平衡光子方法，用于从宽带随机源中提取超快随机数。使用平衡光电检测技术代替电子模数转换器（ADC），将光学采样的混沌脉冲直接量化为连续的随机数流。受益于超快光电检测，我们的方法可以有效消除几乎所有可用的快速物理随机数生成器所需的电子 ADC 的生成速率瓶颈。原理验证实验表明，使用我们的方法可以从带宽增强的混沌源中成功提取 10 Gb/s 实时且统计无偏的随机数。这里通过实验实现的生成速率受到混沌源带宽的限制。所描述的方法有可能达到 100 Gb/s 的实时速率。
We propose a real-time self-balanced photonic method for extracting ultrafast random numbers from broadband randomness sources. In place of electronic analog-to-digital converters (ADCs), the balanced photo-detection technology is used to directly quantize optically sampled chaotic pulses into a continuous random number stream. Benefitting from ultrafast photo-detection, our method can efficiently eliminate the generation rate bottleneck from electronic ADCs which are required in nearly all the available fast physical random number generators. A proof-of-principle experiment demonstrates that using our approach 10 Gb/s real-time and statistically unbiased random numbers are successfully extracted from a bandwidth-enhanced chaotic source. The generation rate achieved experimentally here is being limited by the bandwidth of the chaotic source. The method described has the potential to attain a real-time rate of 100 Gb/s.