2020
DOI: 10.1364/oe.383196
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Random number generation by coherent detection of quantum phase noise

Abstract: In 2010 Qi et al. [Opt. Lett. 35(3), 312 (2010)] demonstrated a random number generator based on the drift of the phase of a laser due to spontaneous emission, The out-of-the-lab implementation of this scheme presents two main drawbacks: it requires a long and highly unbalanced interferometer to generate a random phase with uniform probability distribution, or alternatively, a shorter and slightly unbalanced interferometer that notwithstanding requires active stabilization and does not generate a uniform proba… Show more

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Cited by 7 publications
(1 citation statement)
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“…QRNGs have been exploited by measuring different physical properties [81], [132], including single photon events [133] - [138], amplified spontaneous emission (ASE) [139], vacuum fluctuations [140], and phase noise in both continuous-wave (CW) [141]- [144] and pulsed semiconductor laser diodes [46], [128], [145], [146]. Among all these solutions, QRNGs based on laser phase noise have proven to be the fastest, with records showing a random generation speed of up to 68 Gbps using a CW laser diode driven by a constant current slightly above threshold and a coherent detector [143].…”
Section: Introductionmentioning
confidence: 99%
“…QRNGs have been exploited by measuring different physical properties [81], [132], including single photon events [133] - [138], amplified spontaneous emission (ASE) [139], vacuum fluctuations [140], and phase noise in both continuous-wave (CW) [141]- [144] and pulsed semiconductor laser diodes [46], [128], [145], [146]. Among all these solutions, QRNGs based on laser phase noise have proven to be the fastest, with records showing a random generation speed of up to 68 Gbps using a CW laser diode driven by a constant current slightly above threshold and a coherent detector [143].…”
Section: Introductionmentioning
confidence: 99%