Real-Time 14-Gbps Physical Random Bit Generator Based on Time-Interleaved Sampling of Broadband White Chaos

被引：21

作者：

Wang, Longsheng ^{[1
,2
]}

Zhao, Tong ^{[1
,2
]}

Wang, Daming ^{[1
,2
]}

Wu, Danyu ^{[3
]}

Zhou, Lei ^{[3
]}

Wu, Jin ^{[3
]}

Liu, Xinyu ^{[3
]}

Wang, Yuncai ^{[3
]}

Wang, Anbang ^{[1
,2
]}

机构：

[1] Taiyuan Univ Technol, Key Lab Adv Transducers & Intelligent Control Sys, Minist Educ & Shanxi Prov, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Taiyuan 030024, Peoples R China

[3] Chinese Acad Sci, Inst Microelect, Beijing 100029, Peoples R China

来源：

IEEE PHOTONICS JOURNAL | 2017年 / 9卷 / 02期

关键词：

Semiconductor lasers; heterodyning; ultrafast nonlinear processes; RANDOM NUMBER GENERATOR; BANDWIDTH-ENHANCED CHAOS; SEMICONDUCTOR-LASER; DYNAMICS;

D O I：

10.1109/JPHOT.2017.2690462

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：

We experimentally demonstrate a real-time high-speed physical random bit generator using the time-interleaved sampling of broadband white chaos. The white chaos is generated by optical heterodyning of two external-cavity feedback laser diodes. It has a white-noise-like spectrum with a 3-dB bandwidth of 16.7 GHz and a symmetric amplitude distribution and has no time-delay signatures of the external feedback cavities. An analog-to-digital converter (ADC) chip integrated by two time-interleaved sub-ADCs with a maximum sampling rate of 7 GHz is utilized to discretize the white chaos into parallel binary streams. After real-time interleaving combination and exclusive-OR operation in the field-programmable gate array (FPGA), a 14-Gbps binary stream with verified randomness is achieved.

引用

页数：13

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