Real-time interferometric quantum random number generation on chip

  title={Real-time interferometric quantum random number generation on chip},
  author={Thomas Roger and Taofiq K. Para{\'i}so and Innocenzo De Marco and Davide Giacomo Marangon and Zhiliang Yuan and Andrew J. Shields},
  journal={Journal of the Optical Society of America B},
We demonstrate on-chip quantum random number generation at high data rates using the random phases of gain-switched laser pulses. Interference of the gain-switched pulses produced by two independent semiconductor lasers is performed on a photonic integrated circuit and the resulting pulse train is received and processed in real time using homebuilt capture electronics consisting of a field programmable gate array and a 10-bit digitizer. Random numbers with low correlation coefficient are shown… 

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