Rosenberg, D.
, Nam, S.
, Hiskett, P.
, Peterson, C.
, Hughes, R.
, Nordholt, J.
, Lita, A.
and Miller, A.
(2006),
Quantum key distribution at telecom wavelengths with noise-free detectors, Applied Physics Letters, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=32126
(Accessed October 10, 2025)
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Quantum key distribution at telecom wavelengths with noise-free detectors
Published
Author(s)
, , Philip A. Hiskett, Charles G. Peterson, Richard J. Hughes, Jane E. Nordholt, ,
Abstract
The length of a secure link over which a quantum key can be distributed depends on the efficiency and dark-count rate of the detectors used at the receiver. We report on the first demonstration of quantum key distribution using transition-edge sensors with high efficiency and negligible dark-count rates. Using two methods of synchronization, a bright optical pulse scheme and an electrical signal scheme, we have successfully distributed key material at 1550 nm over 50 km of optical fiber. We discuss how use of these detectors in a quantum key distribution system can result in dramatic increases in range and performance.Citation
Applied Physics Letters
Volume
88
Issue
2
Pub Type
Journals
Download Paper
Keywords
fiber optic, quantum information, quantum key distribution, quatnum communication, single photon detectors, transition-edge sensor
Citation
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Created January 12, 2006, Updated October 12, 2021