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Proceedings Paper

Polarization recovery and auto-compensation in quantum key distribution network
Author(s): Lijun Ma; Hai Xu; Xiao Tang
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Paper 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.

Paper Details

Date Published: 30 August 2006
PDF: 6 pages
Proc. SPIE 6305, Quantum Communications and Quantum Imaging IV, 630513 (30 August 2006); doi: 10.1117/12.679575
Show Author Affiliations
Lijun Ma, National Institute of Standards and Technology (United States)
Hai Xu, National Institute of Standards and Technology (United States)
Univ. of Maryland, Baltimore County (United States)
Xiao Tang, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 6305:
Quantum Communications and Quantum Imaging IV
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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