Freiburg 2019 – wissenschaftliches Programm

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FM: Fall Meeting

FM 74: Secure Communication & Computation III

FM 74.4: Talk

Donnerstag, 26. September 2019, 15:00–15:15, 1009

Requirements for QKD ground station facilities — •Conrad Rößler1,2, Kevin Günthner1,2, Ömer Bayraktar1,2, Jonas Pudelko1,2, Kevin Jaksch1,2, Imran Khan1,2, Gerd Leuchs1,2, and Christoph Marquardt1,21Max Planck Institute for the Science of Light, Staudtstraße 2, 91058 Erlangen, Germany — 2Friedrich Alexander University Erlangen-Nuremberg, Staudtstraße 7/B2, 91058 Erlangen, Germany

During the last years, several space-based [1] quantum key distribution (QKD) setups were presented by various research groups and commercialization is about to start. We want to give insight into several requirements one needs to consider for the design of a space-based QKD system with a focus on the ground station. Both physical parameters as laser wavelength, aperture size, satellite orbit and the Doppler shift resulting from the satellites movement will be part of this presentation as well as a comparison of several encoding protocols. It will also be discussed if and how operation in urban environment is possible, since most research on space communication takes place in wisely chosen locations, usually with very low light pollution.

[1] I. Khan et al., Opt. Photonics News 29(2), 26-33 (2018)

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