Methods and systems for high-data-rate quantum cryptography

Details Methods and systems for high-data-rate quantum cryptography Methods and systems for high-data-rate quantum cryptography

2006-09-26

2006-09-26

Revak, Christopher (Department: 2131)

Cryptography

Communication system using cryptography

Fiber optic network

C380S277000, C380S278000, C380S263000, C380S283000

Reexamination Certificate

active

07113598

ABSTRACT:
Methods and systems enabling enhanced bit-rate QKD fiber-based key delivery. In one embodiment, a secure communications network of this invention includes a number of communication nodes, each of the communication nodes being connected to a quantum channel. At least one of the communication nodes (a sending node) includes a multiplexing system capable of assembling a succession of substantially single photons in a predetermined order. At least another of the communication nodes (a receiving node) includes a receiving system capable of receiving at least some of the assembled succession of substantially single photons, a demultiplexing system capable of separating the received assembled succession of substantially single photons into a number of separated successions of substantially single photons, and, a number of detector systems, each one of the detector systems being capable of detecting one separated succession of the successions of substantially single photons.

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