Spatially Multiplexed Quantum Entropy Source With Single LD for 100-Gbps Random Numbers and Beyond

被引：5

作者：

Tanizawa, Ken ^{[1
]}

Kato, Kentaro ^{[1
]}

Futami, Fumio ^{[1
]}

机构：

[1] Tamagawa Univ, Quantum ICT Res Inst, Tokyo 1948610, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2023年 / 35卷 / 05期

关键词：

Photonics; quantum random number generator; random number generation;

D O I：

10.1109/LPT.2023.3234260

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Fast quantum random number (RN) generation is an essential technology for cryptographic applications requiring unpredictable RNs. This letter reports a spatially multiplexed quantum entropy source (QES) with a single laser diode (LD), utilizing parallel homodyne measurement of vacuum fluctuation, for an aggregated RN generation rate of 100 Gbit/s and beyond. The QES uses a high-power distributed feedback LD and a low-loss 1 x 16 silica planar lightwave circuit splitter and achieves eight-channel parallel operation with a broad bandwidth of 4 GHz each. A four-channel aggregated RN generation rate of 4 x 25 Gbit/s and further scalability up to 8 x 25 Gbit/s with eight channels are demonstrated via offline post-processing.

引用

页码：229 / 232

页数：4