Summary

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

2012

Session Number:A2L-D

Session:

Number:138

Random number generation with a photonic integrated circuit for fast chaos generation

Rie Takahashi,  Yasuhiro Akizawa,  Taiki Yamazaki,  Atsushi Uchida,  Takahisa Harayama,  Ken Tsuzuki,  Satoshi Sunada,  Kazuyuki Yoshimura,  Ken-ichi Arai,  Peter Davis,  

pp.138-141

Publication Date:

Online ISSN:2188-5079

DOI:10.15248/proc.1.138

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Random number generation is experimentally demonstrated with a photonic integrated circuit (PIC) consisting of a semiconductor laser and a short external cavity. Broadband optical chaos with flat radio-frequency spectrum can be generated by adjusting the injection current and the feedback strength of the PIC. A chaotic waveform and its time-delayed signal are sampled with a 1-bit analog-to-digital (AD) converter, and exclusive-or (XOR) operation is carried out to obtain random bit sequences. We used several PICs with different externalcavity lengths. It is found that the maximum rate of the random number generation is dependent on the external cavity length.

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