Sakuraba Ryohsuke, Iwakawa Kento, Kanno Kazutaka, Uchida Atsushi
Opt Express. 2015 Jan 26;23(2):1470-90. doi: 10.1364/OE.23.001470.
We experimentally demonstrate fast physical random bit generation from bandwidth-enhanced chaos by using three-cascaded semiconductor lasers. The bandwidth-enhanced chaos is obtained with the standard bandwidth of 35.2 GHz, the effective bandwidth of 26.0 GHz and the flatness of 5.6 dB, whose waveform is used for random bit generation. Two schemes of single-bit and multi-bit extraction methods for random bit generation are carried out to evaluate the entropy rate and the maximum random bit generation rate. For single-bit generation, the generation rate at 20 Gb/s is obtained for physical random bit sequences. For multi-bit generation, the maximum generation rate at 1.2 Tb/s ( = 100 GS/s × 6 bits × 2 data) is equivalently achieved for physical random bit sequences whose randomness is verified by using both NIST Special Publication 800-22 and TestU01.
我们通过使用三级级联半导体激光器，从带宽增强的混沌中实验性地证明了快速物理随机比特生成。通过标准带宽为35.2 GHz、有效带宽为26.0 GHz和平坦度为5.6 dB获得带宽增强的混沌，其波形用于随机比特生成。进行了用于随机比特生成的单比特和多比特提取方法的两种方案，以评估熵率和最大随机比特生成率。对于单比特生成，对于物理随机比特序列，在20 Gb/s下获得生成率。对于多比特生成，对于通过使用NIST特殊出版物800-22和TestU01验证其随机性的物理随机比特序列，等效地实现了1.2 Tb/s（=100 GS/s×6比特×2数据）的最大生成率。
