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.
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收藏
页码：229 / 232
页数：4
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