Experiments on long wavelength (1550 nm) "plug and play" quantum cryptography systems

M. Bourennane, F. Gibson, Anders Karlsson, A. Hening, P. Jonsson, T. Tsegaye, D. Ljunggren, E. Sundberg
1999 Optics Express  
An interferometric quantum cryptographic system at 1550nm wavelength using gated InGaAs Avalanche Photo Diodes as single-photon receivers is demonstrated for a transmission distance up to 40 km.
doi:10.1364/oe.4.000383 pmid:19396294 fatcat:bcrl5sbcajhfri7gj5u476oc74