Towards Quantum Key Distribution System using Homodyne Detection with Differential Time-Multiplexed Reference

— 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 timemultiplexed 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. Keywords- Quantum Key Distribution, quantum cryptography, coherent detection, homodyne detection, QPSK modulation, BB84 protocol, photon counting, differential phase shift keying

• Type: Conference
• Year: 2007
• Where: RIVF
• Authors: Qing Xu 0006, M. B. C. Silva, Jean-Luc Danger, Sylvain Guilley, Patrick Bellot, Philippe Gallion, Francisco Mendieta
• Keywords: Interface Subsystem Concept, Internet Technology, Quantum Key Distribution, RIVF 2007, Timemultiplexed Unmodulated Carrier