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arXiv:quant-ph/0611123

Photon Counting and Super Homodyne Detection of Weak QPSK Signals for Quantum Key Distribution

Qing Xu, M. B. Costa e Silva, S. Agnolini, Philippe B. Gallion, Francisco Javier Mendieta

Published Nov 11, 2006• 1 citation
arXivHTMLPDF

Abstract

We compare the principles and experimental results of two different QPSK signal detection configurations, photon counting and super homodyning, for applications in fiber-optic Quantum Key Distribution (QKD) systems operating at telecom wavelength, using the BB84 protocol.
DOI
10.48550/arxiv.quant-ph/0611123

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