Fast random number generation with bandwidth-enhanced chaotic semiconductor lasers at 8 × 50 Gb/s

Yasuhiro Akizawa, Taiki Yamazaki, Atsushi Uchida, Takahisa Harayama, Satoshi Sunada, Kenichi Arai, Kazuyuki Yoshimura, Peter Davis

Research output: Contribution to journalArticlepeer-review

63 Citations (Scopus)

Abstract

We propose a scheme for fast random number generation with bandwidth-enhanced chaotic semiconductor lasers. Chaotic laser intensity output and its time-delayed signal are sampled at 50 GigaSample per second and converted into eight-bit values. The order of the eight-bit samples of the time-delayed signal is reversed, and bitwise exclusive-or operation is executed between the bit-order-reversed samples and the original eight-bit samples. With this method, it is not necessary to eliminate any of the bits in eight-bit samples in order to obtain good-quality random bit sequences. The equivalent generation rate of 8 × 50 Gb/s is achieved in an experiment using bandwidth-enhanced chaotic semiconductor lasers.

Original languageEnglish
Article number6194274
Pages (from-to)1042-1044
Number of pages3
JournalIEEE Photonics Technology Letters
Volume24
Issue number12
DOIs
Publication statusPublished - 2012
Externally publishedYes

Keywords

  • Bandwidth enhancement
  • chaos
  • random number generation
  • semiconductor laser

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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