Abstract

We demonstrate high-speed (250 Mbps) data encryption over 25 km of telecommunication fiber by use of coherent states. For the parameter values used in the experiment, the demonstration is secure against individual ciphertext-only eavesdropping attacks near the transmitter with ideal detection equipment. Whereas other quantum-cryptographic schemes require the use of fragile quantum states and ultrasensitive detection equipment, our protocol is loss tolerant, uses off-the-shelf components, and is optically amplifiable.

© 2003 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Spectral coherent-state quantum cryptography

Gabriella Cincotti, Leo Spiekman, Naoya Wada, and Ken-ichi Kitayama
Opt. Lett. 33(21) 2461-2463 (2008)

Physical-layer security analysis of a quantum-noise randomized cipher based on the wire-tap channel model

Haisong Jiao, Tao Pu, Jilin Zheng, Peng Xiang, and Tao Fang
Opt. Express 25(10) 10947-10960 (2017)

From quantum cloning to quantum key distribution with continuous variables: a review (Invited)

Nicolas J. Cerf and Philippe Grangier
J. Opt. Soc. Am. B 24(2) 324-334 (2007)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (7)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription