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Proceedings Paper

Quantum communications over optical fiber networks
Author(s): Thomas E. Chapuran; Robert J. Runser; Paul Toliver; Nicholas A. Peters; Matthew S. Goodman; Scott R. McNown; Jon T. Kosloski; Richard J. Hughes; Charles G. Peterson; Kevin P. McCabe; Jane E. Nordholt; Kush T. Tyagi; Phillip A. Hiskett; Nicholas Dallmann; Linden Mercer; Henry Dardy
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Paper Abstract

Quantum communications is an emerging field with many promising applications. Its usefulness and range of applicability in optical fiber will depend strongly on the extent to which quantum channels can be reliably transported over transparent reconfigurable optical networks, rather than being limited to dedicated point-to-point links. This presents a number of challenges, particularly when single-photon quantum and much higher power classical optical signals are combined onto a single physical infrastructure to take advantage of telecom networks built to carry conventional traffic. In this paper, we report on experimental demonstrations of successful quantum key distribution (QKD) in this complex environment, and on measurements of physical-layer impairments, including Raman scattering from classical optical channels, which can limit QKD performance. We then extend the analysis using analytical models incorporating impairments, to investigate QKD performance while multiplexed with conventional data channels at other wavelengths. Finally, we discuss the implications of these results for evaluating the most promising domains of use for QKD in real-world optical networks.

Paper Details

Date Published: 25 September 2007
PDF: 12 pages
Proc. SPIE 6710, Quantum Communications and Quantum Imaging V, 67100R (25 September 2007); doi: 10.1117/12.732619
Show Author Affiliations
Thomas E. Chapuran, Telcordia Technologies (United States)
Robert J. Runser, Lab. for Telcommunications Sciences (United States)
Paul Toliver, Telcordia Technologies (United States)
Nicholas A. Peters, Telcordia Technologies (United States)
Matthew S. Goodman, Telcordia Technologies (United States)
Scott R. McNown, Lab. for Telcommunications Sciences (United States)
Jon T. Kosloski, Lab. for Telcommunications Sciences (United States)
Richard J. Hughes, Los Alamos National Lab. (United States)
Charles G. Peterson, Los Alamos National Lab. (United States)
Kevin P. McCabe, Los Alamos National Lab. (United States)
Jane E. Nordholt, Los Alamos National Lab. (United States)
Kush T. Tyagi, Los Alamos National Lab. (United States)
Phillip A. Hiskett, Los Alamos National Lab. (United States)
Nicholas Dallmann, Los Alamos National Lab. (United States)
Linden Mercer, Naval Research Lab. (United States)
Henry Dardy, Naval Research Lab. (United States)


Published in SPIE Proceedings Vol. 6710:
Quantum Communications and Quantum Imaging V
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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