Fast quantum randomness generation from vacuum fluctuation induced phase diffusion between pulses of laser diode

Violetta Sharoglazova, Roman Ermakov*, Anton Losev, Vladimir Zavodilenko, Vladimir Kurochkin, Yuriy Kurochkin

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

In this paper, the prototype of quantum random number generator (QRNG) which is shown by extracting ran-domness from vacuum fluctuation of the electromagnetic field inside the laser cavity. A distributed feedback (DFB) laser diode (LD) is directly modulated to produce short optical pulses. The laser is operated far above and far below the threshold resulting in field of pulse which has a true random phase. The efficient conversion of vacuum fluctuations to random sequence of power of optical pulses is made by homemade Michelson interferom-eter. A proposed device has proven to have far more superior interferometric visibility coupled with high power making it also a cost-effective PIN diode detector as compared to QRNGs based on phase fluctuation modu-lated by constant current. As a result a proposed device is highly integrated using only commercially available components. Due to appropriate realization of our device, we have a good quality of raw random bits that have passed all tests without postprocessing. So the postprocessing doesn't significantly decrease the speed of output random bits. In fact, we have successfully demonstrated a prototype of high speed QRNG at a generation rate of over 1 Gbps.

Original languageEnglish
Title of host publicationInternational Conference on Micro- and Nano-Electronics 2018
EditorsKonstantin V. Rudenko, Vladimir F. Lukichev
PublisherSPIE - The International Society for Optical Engineering
ISBN (Electronic)9781510627093
DOIs
Publication statusPublished - 2019
Externally publishedYes
EventInternational Conference on Micro- and Nano-Electronics 2018, ICMNE 2018 - Zvenigorod, Russian Federation
Duration: 1 Oct 20185 Oct 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11022
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceInternational Conference on Micro- and Nano-Electronics 2018, ICMNE 2018
Country/TerritoryRussian Federation
CityZvenigorod
Period1/10/185/10/18

Keywords

  • phase diffusion
  • QRNG
  • quantum random number generator
  • vacuum fluctuation

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