Frequency-coded quantum key distribution.
We report an intrinsically stable quantum key distribution scheme based on genuine frequency-coded quantum states. The qubits are efficiently processed without fiber interferometers by fully exploiting the nonlinear interaction occurring in electro-optic phase modulators. The system requires only integrated off-the-shelf devices and could be used with a true single-photon source. Preliminary experiments have been performed with weak laser pulses and have demonstrated the feasibility of this new setup.
Bloch
Matthieu
M
Georgia Tech--CNRS, UMI 2958, 2-3 rue Marconi 57070 Metz, France. matthieu@gatech.edu
McLaughlin
Steven W
SW
Merolla
Jean-Marc
JM
Patois
Frédéric
F