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 journalArticle

    10 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

    • Ceramics and Composites
    • Materials Chemistry

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