dorsal/arxiv
View SchemaA Short Wavelength GigaHertz Clocked Fiber-Optic Quantum Key Distribution System
| Authors | Karen J. Gordon, Veronica Fernandez, Paul D. Townsend, Gerald S. Buller |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0605222 |
| URL | https://arxiv.org/abs/quant-ph/0605222 |
| DOI | 10.1109/JQE.2004.830182 |
| Journal | IEEE Journal of Quantum Electronics, Volume 40 (7), pp900-908 (2004) |
Abstract
A 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.
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"abstract": "A quantum key distribution system has been developed, using standard\ntelecommunications optical fiber, which is capable of operating at clock rates\nof greater than 1 GHz. The quantum key distribution system implements a\npolarization encoded version of the B92 protocol. The system employs\nvertical-cavity surface-emitting lasers with emission wavelengths of 850 nm as\nweak coherent light sources, and silicon single photon avalanche diodes as the\nsingle photon detectors. A distributed feedback laser of emission wavelength\n1.3 micro-metres, and a linear gain germanium avalanche photodiode was used to\noptically synchronize individual photons over the standard telecommunications\nfiber. The quantum key distribution system exhibited a quantum bit error rate\nof 1.4%, and an estimated net bit rate greater than 100,000 bits-per-second for\na 4.2 km transmission range. For a 10 km fiber range a quantum bit error rate\nof 2.1%, and estimated net bit rate of greater than 7,000 bits-per-second was\nachieved.",
"arxiv_id": "quant-ph/0605222",
"authors": [
"Karen J. Gordon",
"Veronica Fernandez",
"Paul D. Townsend",
"Gerald S. Buller"
],
"categories": [
"quant-ph"
],
"doi": "10.1109/JQE.2004.830182",
"journal_ref": "IEEE Journal of Quantum Electronics, Volume 40 (7), pp900-908\n (2004)",
"title": "A Short Wavelength GigaHertz Clocked Fiber-Optic Quantum Key Distribution System",
"url": "https://arxiv.org/abs/quant-ph/0605222"
},
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