Abstract:
The method of active stabilization of the polarization and other parameters of the optical part of a two-pass fiber optic quantum cryptography has been proposed and implemented. The method allows the completely automated maintenance of the visibility of interference close to an ideal value (V⩾0.99) and the reduction of the instrumental contribution to the error in primary keys (QBER) to 0.5%.
Citation:
K. A. Balygin, A. N. Klimov, S. P. Kulik, S. N. Molotkov, “Active stabilization of the optical part in fiber optic quantum cryptography”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:6 (2016), 469–474; JETP Letters, 103:6 (2016), 420–424