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Quantum Random Number Generation for 1.25-GHz Quantum Key Distribution Systems

Published in Journal of Lightwave Technology. 2015, vol. 33, no. 13, p. 2855-2859
Abstract Security proofs of quantum key distribution (QKD) systems usually assume that the users have access to source of per- fect randomness. State-of-the-art QKD systems run at frequencies in the gigahertz range, requiring a sustained gigahertz rate of generation and acquisition of quantum random numbers. In this paper, we demonstrate such a high-speed random number gen- erator. The entropy source is based on an amplified spontaneous emission from an erbium-doped fibre, which is directly acquired using a standard small form-factor pluggable module. The mod- ule connects to the field programmable gate array (FPGA) of a QKD system. A real-time randomness extractor is implemented in the FPGA, and achieves a sustained rate of 1.25 Gb/s of provably random bits.
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Research group Groupe Zbinden
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MARTIN, Anthony et al. Quantum Random Number Generation for 1.25-GHz Quantum Key Distribution Systems. In: Journal of Lightwave Technology, 2015, vol. 33, n° 13, p. 2855-2859. https://archive-ouverte.unige.ch/unige:83943

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Deposited on : 2016-05-30

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