A Short Wavelength GigaHertz Clocked Fiber-Optic Quantum Key Distribution System

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dc.creatorGordon, Karen J.
dc.creatorFernandez, Veronica
dc.creatorTownsend, Paul D.
dc.creatorBuller, Gerald S.
dc.date2006-05-26
dc.date.accessioned2026-07-07T07:15:25Z
dc.date.available2026-07-07T07:15:25Z
dc.descriptionA quantum key distribution system has been developed, using standard telecommunications optical fiber, which is capable of operating at clock rates of greater than 1 GHz. The quantum key distribution system implements a polarization encoded version of the B92 protocol. The system employs vertical-cavity surface-emitting lasers with emission wavelengths of 850 nm as weak coherent light sources, and silicon single photon avalanche diodes as the single photon detectors. A distributed feedback laser of emission wavelength 1.3 micro-metres, and a linear gain germanium avalanche photodiode was used to optically synchronize individual photons over the standard telecommunications fiber. The quantum key distribution system exhibited a quantum bit error rate of 1.4%, and an estimated net bit rate greater than 100,000 bits-per-second for a 4.2 km transmission range. For a 10 km fiber range a quantum bit error rate of 2.1%, and estimated net bit rate of greater than 7,000 bits-per-second was achieved.
dc.descriptionPre-press version
dc.identifierhttps://arxiv.org/abs/quant-ph/0605222
dc.identifierhttp://arxiv.org/abs/quant-ph/0605222
dc.identifierIEEE Journal of Quantum Electronics, Volume 40 (7), pp900-908 (2004)
dc.identifierdoi:10.1109/JQE.2004.830182
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113250
dc.subjectQuantum Physics
dc.titleA Short Wavelength GigaHertz Clocked Fiber-Optic Quantum Key Distribution System
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