Journal
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
Volume 36, Issue 3, Pages B137-B142Publisher
OPTICAL SOC AMER
DOI: 10.1364/JOSAB.36.00B137
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Funding
- Innovate UK (EQUIP)
- H2020 Marie Sklodowska-Curie Actions (MSCA) [675662, 750602]
- Marie Curie Actions (MSCA) [750602] Funding Source: Marie Curie Actions (MSCA)
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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 for pulse clock rates of 1 GHz and data rates of 8 Gbps. The random numbers are also shown to successfully pass all tests within the National Institute for Standards and Technology test suite. The system provides genuine random numbers in a compact platform that can be readily integrated into existing quantum cryptographic technology. (C) 2019 Optical Society of America
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