We present a photonic approach for fast quantum random number generation based on optically sampled amplified spontaneous emission (ASE). This approach utilizes a terahertz optical asymmetric demultiplexer to sample the ASE and then digitize the sampled optical pulses into random bits using a multi-bit parallel comparator. A proof-of-concept experiment demonstrates that 40 Gb/s random bits with verified randomness can be obtained using our method. The current generation rate is mainly limited by the bandwidth of the available ASE source.

中文翻译：

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基于光采样放大自发发射的 40 Gb/s 量子随机数生成

我们提出了一种基于光采样放大自发辐射 (ASE) 的快速量子随机数生成光子方法。这种方法利用太赫兹光学非对称解复用器对 ASE 进行采样，然后使用多位并行比较器将采样的光脉冲数字化为随机位。概念验证实验表明，使用我们的方法可以获得具有验证随机性的 40 Gb/s 随机位。当前的生成速率主要受可用 ASE 源的带宽限制。