Polarization Recovery and Auto-Compensation in Quantum Key Distribution Network

Abstract

A Quantum Key Distribution (QKD) network can allow multi-user communication via secure key. Moreover, by actively switching communication nodes, one can achieve high key transmission rate for the selected nodes. However, the polarization properties of different fiber path are different and these properties also randomly drift over time. Therefore, polarization recovery after the switching and auto-compensation during key transmission are critical for the QKD network. In this work, we use programmable polarization controllers to implement polarization recovery and auto-compensation in the QKD network. We will also discuss its time limitation and future improvement.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2006
Accession Number
ADA507569

Entities

People

  • Hai Xu
  • Lijun Ma
  • Xiao Tang

Organizations

  • National Institute of Standards and Technology

Tags

Communities of Interest

  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Abstracts
  • Coding
  • Compensation
  • Computers
  • Crystals
  • Detection
  • Detectors
  • Extinction
  • Feedback
  • Fibers
  • Liquid Crystals
  • Networks
  • Optical Fibers
  • Polarization
  • Quantum Key Distribution
  • Recovery
  • Standards

Fields of Study

  • Computer science

Readers

  • Computer Networking
  • Educational Psychology
  • Materials Science and Engineering.

Technology Areas

  • Quantum Computing
  • Quantum Science - Quantum Dots
  • Quantum Science - Quantum Key Distribution