An autocompensating fiber-optic quantum cryptography system

Author

Bethune, Donald S. ; Risk, W.P.

Author_Institution

IBM Almaden Res. Center, San Jose, CA, USA

fYear

2000

fDate

12-12 May 2000

Firstpage

209

Lastpage

210

Abstract

Summary form only given. Quantum cryptography, or quantum key distribution (QKD), invented by Bennett and Brassard is a method for creating shared, assuredly secret, cryptographic key data over unsecured optical links. Security is guaranteed by the fundamental quantum properties of light. We describe our system in great detail, and report recent improvements and results obtained in generating error-corrected, privacy-amplified photographic key data over a 10-km single-mode fiber link. Bob transmits two orthogonally-polarized phase coherent pulses.

Keywords

error correction codes; optical beam splitters; optical fibre communication; public key cryptography; quantum cryptography; security; autocompensating fiber-optic quantum cryptography system; error-corrected; light fundamental quantum properties; orthogonally-polarized phase coherent pulses; privacy-amplified photographic key data; quantum key distribution; shared assuredly secret cryptographic key data; single-mode fiber link; unsecured optical links; Cryptography; Decoding; Helium; Optical fiber communication; Optical fiber polarization; Optical polarization; Optical pulses; Protocols; Rails; Tires;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 2000. (QELS 2000). Technical Digest

Conference_Location

San Francisco, CA, USA

ISSN

1094-5695

Print_ISBN

1-55752-608-7

Type

conf

Filename

901999