Auto-compensating Quantum Cryptosystem using Homodyne Detection
Qing Xu, M. B. Costa e Silva, P. Gallion, Francisco Javier Mendieta · 2008
We implement an experimental quantum cryptosystem using standard 1550nm channel devices with auto-compensation for phase instabilities in which balanced homodyne detection employs a time-multiplexed strong reference. We use a dual-threshold to improve QBER.