Field trial of a quantum secured 10 Gb/s DWDM transmission system over a single installed fiber
Iris Choi, Yu Rong Zhou, J. F. Dynes, Zhiliang L. Yuan, Andreas Klar, A. W. Sharpe, Alan Plews, Marco Lucamarini, Christian Radig, Jörg Neubert, Helmut Grießer, Michael Eiselt, Christopher J. Chunnilall, Guillaume Lepert, Alastair G. Sinclair, Jörg-Peter Elbers, Andrew Lord, Andrew J. Shields · Optics Express · 2014
We present results from the first field-trial of a quantum-secured DWDM transmission system, in which quantum key distribution (QKD) is combined with 4 × 10 Gb/s encrypted data and transmitted simultaneously over 26 km of field installed fiber. QKD is used to frequently refresh the key for AES-256 encryption of the 10 Gb/s data traffic. Scalability to over 40 DWDM channels is analyzed.