title: Fast physical random bit generation with photonic integrated circuits with different external cavity lengths for chaos generation.
abstract: We generate random bit sequences from chaotic temporal waveforms by using photonic integrated circuits (PICs) with different external cavity lengths. We investigate the condition for generating random bits at different sampling rates of single-bit generation method with the PICs. We succeed in generating certified random bit sequences by using the PIC with 3, 4, 5, or 10-mm-long external cavity, whereas random bits cannot pass all the statistical tests of randomness when the PIC with 1 or 2 mm-long external cavity is used.
authors.forename: Rie
authors.initials: R
authors.lastname: Takahashi
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Akizawa
authors.forename: Atsushi
authors.initials: A
authors.lastname: Uchida
authors.forename: Takahisa
authors.initials: T
authors.lastname: Harayama
authors.forename: Ken
authors.initials: K
authors.lastname: Tsuzuki
authors.forename: Satoshi
authors.initials: S
authors.lastname: Sunada
authors.forename: Kenichi
authors.initials: K
authors.lastname: Arai
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Yoshimura
authors.forename: Peter
authors.initials: P
authors.lastname: Davis