Random Number Generation from Intermittent Optical Chaos

Andreas Karsaklian Dal Bosco, Naoki Sato, Yuta Terashima, Shoma Ohara, Atsushi Uchida, Takahisa Harayama, Masanobu Inubushi

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


We propose a method to generate physical random numbers based on intermittent optical chaos. Intermittent chaotic output is produced in a semiconductor laser subjected to optical feedback embedded in a photonic integrated circuit. This dynamics is characterized by a temporal waveform organized in a succession of laminar regions of low amplitude and bursts of high amplitude. The temporal randomness ruling the alternation of successive laminar regions and bursts is used as an entropy source to generate sequences of random bits. We compare the performances of the exclusive OR and reverse methods implemented in the bit generation process and evaluate the quality of the random bits with the Rabbit test of TestU01 for different bit sequences lengths.

Original languageEnglish
Article number7937786
JournalIEEE Journal of Selected Topics in Quantum Electronics
Issue number6
Publication statusPublished - 2017 Nov 1


  • Chaos
  • photonic integrated systems
  • random number generation
  • semiconductor lasers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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