One-way Differential QPSK Quantum Key Distribution with Channel Impairments Compensation
Qing Xu, M. B. Costa e Silva, P. Gallion, Francisco Javier Mendieta · 2007
Summary form only given. We report an experimental demonstration of a BB84 QKD one-way system using fainted pulses and a QPSK key format including a time-multiplexed unmodulated carrier reference at Alice's end, and a differential reception at Bob's end (Hirano, et.al., 2003), in which phase drift and polarization mismatch are two critical impairments to overcome.