4.5 Gbps high-speed real-time physical random bit generator.

@article{Wang201345GH,
  title={4.5 Gbps high-speed real-time physical random bit generator.},
  author={Anbang Wang and Pu Li and Jianguo Zhang and Jianzhong Zhang and Lei Li and Yuncai Wang},
  journal={Optics express},
  year={2013},
  volume={21 17},
  pages={
          20452-62
        }
}
We report a prototype of high-speed real-time physical random bit generator based on a chaotic laser. The chaotic laser consists of a semiconductor laser with optical feedback in fiber external cavity configuration. The chaotic laser intensity signal is quantized into binary stream by differential comparison which makes the amplitude distribution symmetric with respect to zero mean value. An exclusive-OR gate operation between two raw binary streams from the chaotic signal and its delayed… Expand
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