A short wavelength GigaHertz clocked fiber-optic quantum key distribution system
By K. Gordon, V. Fernández, P. Townsend, Gerald S. Buller. IEEE Journal of Quantum Electronics, 2004
158 citations recorded by the source corpus.
A quantum key distribution (QKD) system has been developed, using a standard telecommunications optical fiber, which is capable of operating at clock rates of greater than 1 GHz. The QKD 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 /spl mu/m, and a linear gain germanium avalanche photodiode was used to optically synchronize individual photons over the standard telecommunications fiber. The QKD system exhibited a quantum bit error rate (QBER) of 1.4%, and an estimated net bit rate (NBR) greater than 100 000 bits/sup -1/ for a 4.2-km transmission range. For a 10-km fiber range, a QBER of 2.1%, and an estimated NBR of greater than 7000 bits/sup -1/ was achieved.
Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics, Electrical and Electronic Engineering
View Paper: https://www.semanticscholar.org/paper/7824004b89917493318601941b039a17e47c1afd
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Artificial Intelligence
In Atomic and Molecular Physics, and Optics
In Electrical and Electronic Engineering
Citations in the corpus
- Design and performance of an InGaAs-InP single-photon avalanche diode detector (2006, methodology): “been employed in quantum key distribution [4] and noninvasive testing of VLSI circuits [5].”
- Fully Integrated Single Photon Avalanche Diode Detector in Standard CMOS 0.18- $\mu$m Technology (2008, unknown): “Applications like quantum cryptography [9], profilometry of”