Implementation of multiplexing in a subcarrier-wave quantum cryptography system
Vladimir Chistiakov, Artur V. Gleim, V. I. Egorov, Yuli V. Nazarov · Journal of Physics Conference Series · 2014
Quantum cryptography allows distributing secure keys in a way that any eavesdropping in the channel is inevitably detected. This work is dedicated to introducing wavelength division multiplexing in a subcarrier-wave quantum cryptography system. Compared to other existing schemes, the resulting device is able to achieve higher bitrates (up to 2.26 Mbit/s at 20 km), is robust against external conditions and compatible with standard telecommunication fibres in multi-user environment.