[en] Quantum Key Distribution (QKD) is a secure cryptographic information transmission method that relies on quantum properties of photons. QKD in space imposes challenges: absorption and turbulence. We address these problems with a heralded single-photon source with signal photons in the C band for transmissivity and polarisation encoding because of the robustness in the atmosphere. The photons are produced via Degenerate Four-Wave Mixing (FWM) in a Photonic Crystal Fibre (PCF).
Research Center/Unit :
CSL - Centre Spatial de Liège - ULiège Multitel Innovation Centre
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Chaabani, Sélim ; Université de Liège - ULiège > Unités de recherche interfacultaires > Space sciences, Technologies and Astrophysics Research (STAR)
Desnos, Nolan; ULille - University of Lille [FR] > PhLAM
Zajnulina, Marina; Multitel Innovation Centre > Applied photonics
Boivinet, Simon; Multitel Innovation Centre > Applied photonics
Lecourt, Jean-Bernard; Multitel Innovation Centre > Applied photonics
Kudlinski, Alexandre; ULille - University of Lille [FR] > PhLAM
Mussot, Arnaud; ULille - University of Lille [FR] > PhLAM
Habraken, Serge ; Université de Liège - ULiège > Centres généraux > CSL (Centre Spatial de Liège)
Hernandez, Yves; Multitel Innovation Centre > Applied photonics
Language :
English
Title :
A Source of Single Photons for Quantum Key Distribution in Space
Publication date :
July 2024
Event name :
Optique Normandie
Event organizer :
Société française d'optique
Event place :
Rouen, France
Event date :
from 1 to 5 July 2024
Audience :
International
Name of the research project :
Space4ReLaunch
Funders :
SPW EER - Service Public de Wallonie. Economie, Emploi, Recherche
Funding number :
2210181
Funding text :
This research is part of the Space4ReLaunch project, which is supported by the SPW Economie Emploi Recherche of the Walloon Region, under grant agreement no. 2210181.
