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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 35, Iss. 8 — Apr. 15, 2010
  • pp: 1203–1205

Quantum key distribution based on phase encoding in long-distance communication fiber

Shi-Hai Sun, Hai-Qiang Ma, Jia-Jia Han, Lin-Mei Liang, and Cheng-Zu Li  »View Author Affiliations

Optics Letters, Vol. 35, Issue 8, pp. 1203-1205 (2010)

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A robust two-way quantum key distribution system based on phase encoding is demonstrated in 50 km and 100 km commercial communication fiber. The system can automatically compensate for birefringence effects and remain stable over 23  h . A low quantum bit error rate and high visibility are obtained. Furthermore, the storage fiber is unnecessary and train of pulses is only needed in the test with 100 km fiber.

© 2010 Optical Society of America

OCIS Codes
(060.2330) Fiber optics and optical communications : Fiber optics communications
(270.5568) Quantum optics : Quantum cryptography

ToC Category:
Quantum Optics

Original Manuscript: January 6, 2010
Revised Manuscript: March 11, 2010
Manuscript Accepted: March 11, 2010
Published: April 14, 2010

Shi-Hai Sun, Hai-Qiang Ma, Jia-Jia Han, Lin-Mei Liang, and Cheng-Zu Li, "Quantum key distribution based on phase encoding in long-distance communication fiber," Opt. Lett. 35, 1203-1205 (2010)

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