Random Number Generation by Mode Hopping of VCSEL Using Optical Feedback

ZHANG Yu-ling; LI Pu; XIA Zhi-qiang; CHEN Chao-jie; MA Li; XU Bing-jie

doi:10.13756/j.gtxyj.2023.01.005

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Random Number Generation by Mode Hopping of VCSEL Using Optical Feedback

更新时间：2023-01-16

- Random Number Generation by Mode Hopping of VCSEL Using Optical Feedback
- Study on Optical Communications Issue 1, Pages: 47-52(2023)
- 作者机构：
  
  1.太原理工大学　新型传感器与智能控制教育部重点实验室，太原　030024
  2.广东工业大学　信息工程学院，广州　510006
  3.广东省光子学信息技术重点实验室，广州　510006
  4.保密通信重点实验室，成都　610041
- 作者简介：
- 基金信息：
- DOI：10.13756/j.gtxyj.2023.01.005
  CLC： TN249; TN248.4
- Published：10 February 2023，
  
  Received：30 April 2022，
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张玉岭，李璞，夏志强，等.利用光反馈VCSEL模式跳变产生随机数[J].光通信研究，2023(1)：47-52

ZHANG Y L, LI P, XIA Z Q, et al.Random Number Generation by Mode Hopping of VCSEL Using Optical Feedback[J]. Study on Optical Communications, 2023(1):47-52
张玉岭，李璞，夏志强，等.利用光反馈VCSEL模式跳变产生随机数[J].光通信研究，2023(1)：47-52 DOI： 10.13756/j.gtxyj.2023.01.005.

ZHANG Y L, LI P, XIA Z Q, et al.Random Number Generation by Mode Hopping of VCSEL Using Optical Feedback[J]. Study on Optical Communications, 2023(1):47-52 DOI： 10.13756/j.gtxyj.2023.01.005.

摘要

近年来，在物理随机数生成速率的提高方面取得了很大的研究进展，但仍存在产生过程复杂和体积庞大等缺陷。针对该问题，文章从理论上提出了利用光反馈下垂直腔面发射激光器（VCSEL）模式跳变产生随机数的方案。通过光反馈扰动使VCSEL产生模式跳变，再由方波信号对注入电流进行调制，周期性重启VCSEL使其由非激射状态切换到模式跳变状态，最终输出随机脉冲序列实现随机数的产生。研究结果表明，具有通过随机性验证的无偏随机数能够以Gbit/s量级的速率连续产生。文章所提方案消除了对光/电转换和后处理操作的需求，简化了当前随机数的产生结构，且具有实现低成本光子集成随机数发生器的潜力。

Abstract

Recent research results show that great progress has been made in improving the generation rate of physical random numbers. However

there are still some defects such as complex generation process and large volume. To solve these problems

this paper theoretically proposes a scheme for generating random numbers using mode hopping of Vertical Cavity Surface Emitting Laser (VCSEL) with optical feedback. The VCSEL is perturbed by the optical feedback to generate the mode hopping. The square wave signal then modulates the injection current

periodically restarts the VCSEL to switch from the non-emitting state to the mode hopping state

and finally outputs a random pulse sequence to realize the random number generation. The results of this paper show that unbiased random numbers with verified randomness can be generated continuously at a rate of the order of Gbit/s. Our scheme eliminates the need for optoelectronic conversion and post-processing operations

simplifing the current random number generation structure

which has the potential to realize a low-cost photonic integrated random number generator.

关键词

垂直腔面发射激光器模式跳变光反馈随机数

Keywords

VCSELmode hoppingoptical feedbackrandom number

references

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