Global Patent Index - EP 1690364 A2

EP 1690364 A2 20060816 - COHERENT-STATES BASED QUANTUM DATA-ENCRYPTION THROUGH OPTICALLY-AMPLIFIED WDM COMMUNICATION NETWORKS

Title (en)

COHERENT-STATES BASED QUANTUM DATA-ENCRYPTION THROUGH OPTICALLY-AMPLIFIED WDM COMMUNICATION NETWORKS

Title (de)

AUF KOHÄRENTEN ZUSTÄNDEN BASIERENDE QUANTEN-DATENVERSCHLÜSSELUNG DURCH OPTISCH VERSTÄRKTE WDM-KOMMUNIKATIONSNETZE

Title (fr)

CHIFFRAGE QUANTIQUE DE DONNEES BASE SUR LES ETATS COHERENTS VIA DES RESEAUX DE COMMUNICATION MRL A AMPLIFICATION OPTIQUE

Publication

EP 1690364 A2 20060816 (EN)

Application

EP 04810393 A 20041105

Priority

  • US 2004036911 W 20041105
  • US 51742203 P 20031105
  • US 51896603 P 20031110
  • US 54663804 P 20040220

Abstract (en)

[origin: WO2005046114A2] A quantum cryptographic protocol uses two-mode coherent states that is optically amplifiable, resulting in a polarization independent system that is compatible with the existing WDM infrastructure and which provides secure data encryption suitable for wavelength division multiplexing networks through an in-line amplified line.

IPC 8 full level

H04L 9/00 (2006.01); H04B 10/70 (2013.01); H04L 9/08 (2006.01); H04J 14/02 (2006.01)

CPC (source: EP)

H04B 10/70 (2013.01); H04J 14/0241 (2013.01); H04L 9/0858 (2013.01); H04J 14/0227 (2013.01); H04J 14/0279 (2013.01); H04L 2209/08 (2013.01)

Citation (search report)

See references of WO 2005046114A2

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LU MC NL PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2005046114 A2 20050519; WO 2005046114 A3 20060330; EP 1690364 A2 20060816; JP 2007511178 A 20070426

DOCDB simple family (application)

US 2004036911 W 20041105; EP 04810393 A 20041105; JP 2006539664 A 20041105