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 language | English |
|---|---|
| Article number | 6194274 |
| Pages (from-to) | 1042-1044 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 24 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - 2012 May 22 |
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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Akizawa, Y., Yamazaki, T., Uchida, A., Harayama, T., Sunada, S., Arai, K., Yoshimura, K., & Davis, P. (2012). Fast random number generation with bandwidth-enhanced chaotic semiconductor lasers at 8 × 50 Gb/s. IEEE Photonics Technology Letters, 24(12), 1042-1044. [6194274]. https://doi.org/10.1109/LPT.2012.2193388