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

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physics.optics2006

Homodyne detection for quantum key distribution: an alternative to photon counting in BB84 protocol

M. B. Costa e Silva, Q. Xu, S. Agnolini +2

This paper presents the principles and experimental results of an optical fiber QKD system operating at 1550 nm, and using the BB84 protocol with QPSK signals. Our experimental set…