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Proceedings Paper

Quantum key distribution system for metropolitan-area networks
Author(s): A. Tomita
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Paper Abstract

Requirements and specifications of quantum key distribution (QKD) systems are examined particularly for metropolitanarea networks. A design of QKD system is considered to satisfy the specifications. BB84 protocol with decoy method is chosen. The unidirectional system based on planer light wave circuit for high speed operation is proposed for quantum transmission. Issues on system control such as clock synchronization and frame synchronization are discussed. Finally, decoy method is analyzed and demonstrated to guarantee the quantitative security of the final key in real systems.

Paper Details

Date Published: 10 September 2007
PDF: 9 pages
Proc. SPIE 6780, Quantum Communications Realized, 678012 (10 September 2007); doi: 10.1117/12.735100
Show Author Affiliations
A. Tomita, ERATO-SORST, JST (Japan)
NEC Corp. (Japan)


Published in SPIE Proceedings Vol. 6780:
Quantum Communications Realized
Yasuhiko Arakawa; Masahide Sasaki; Hideyuki Sotobayashi, Editor(s)

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