https://doi.org/10.1051/epjconf/202023811004
Autocompensating high-dimensional quantum cryptography by phase conjugation in optical fibers
Quantum Materials and Photonics Research Group, Department of Applied Physics, Faculty of Physics / Faculty of Optics and Optometry, University of Santiago de Compostela, Campus Vida s/n, E-15782, Santiago de Compostela, Galicia, Spain.
* e-mail: suso.linares.beiras@usc.es
** e-mail: daniel.balado.souto@usc.es
Published online: 20 August 2020
We present a system based on phase conjugation in optical fibers for autocompensating highdimensional quantum cryptohraphy. Phase changes and coupling effects are auto-compensated by a single loop between Alice and Bob. Bob uses a source of coherent states and next Alice attenuate them up to a single photon level and thus 1-qudit states are generated for implementing a particular QKD protocol, for instance the BB84 one, together with decoy states to detect eavesdropping attacks.
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
