Summary

Proceedings of the 2012 International Symposium on Nonlinear Theory and its Applications

2012

Session Number:A2L-D

Session:

Number:142

Fast random number generation with bandwidth-enhanced chaos and post-processing

Taiki Yamazaki,  Yasuhiro Akizawa,  Atsushi Uchida,  Kazuyuki Yoshimura,  Kenichi Arai,  Peter Davis,  

pp.142-145

Publication Date:

Online ISSN:2188-5079

DOI:10.15248/proc.1.142

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Summary:
We experimentally demonstrate random number generation using multi-bit samples of bandwidth-enhanced chaos in two pairs of semiconductor lasers. Chaotic fluctuations of laser output are generated in two semiconductor laser with optical feedback independently. The chaotic outputs are injected into the corresponding semiconductor lasers to obtain chaotic intensity signals and their time-delayed signals for bandwidth enhancement. The four chaotic signals are converted to 8-bit digital signals by sampling at 50 Giga samples per second (GS/s). Random bits are generated by the combination of bitorder-reversal method, bitwise exclusive-OR operation, and extraction of some least significant bits. The maximum generation rate at 1.05 Tb/s (= 3 data × 7 bit × 50 GS/s) can be achieved for random bit sequences with certified randomness.

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