Towards Quantum Key Distribution System using Homodyne Detection with Differential Time-Multiplexed Reference
Qing Xu, M. B. Costa e Silva, J.-L. Danger, Sylvain Guilley, Pablo Bellot, P. Gallion, Francisco Javier Mendieta · 2007
In this work we present the principles and experimental demonstration of a BB84 quantum key distribution (QKD) one way system using fainted pulses and a quadrature phase-shift-keying (QPSK) format including a time- multiplexed unmodulated carrier reference at Alice's end, and a differential homodyne reception at Bob's end. We also describe the secure electronics interface subsystem concept for the interaction with upper layers in an IP application.