DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Aerospace laser communications technology as enabler for worldwide quantum key distribution

Moll, Florian and Weinfurter, Harald and Rau, Markus and Schmidt, Christopher and Melen, Gwen and Vogl, Tobias and Nauerth, Sebastian and Fuchs, Christian (2016) Aerospace laser communications technology as enabler for worldwide quantum key distribution. In: Proceedings of SPIE - The International Society for Optical Engineering, 99000K-1. Quantum Optics, Brussels, Belgium. DOI: 10.1117/12.2230232

[img] PDF (Full paper)

Official URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2520273


A worldwide growing interest in fast and secure data communications pushes technology development along two lines. While fast communications can be realized using laser communications in fiber and free-space, inherently secure communications can be achieved using quantum key distribution (QKD). By combining both technologies in a single device, many synergies can be exploited, therefore reducing size, weight and power of future systems. In recent experiments we demonstrated quantum communications over large distances as well as between an aircraft and a ground station which proved the feasibility of QKD between moving partners. Satellites thus may be used as trusted nodes in combination with QKD receiver stations on ground, thereby enabling fast and secure communications on a global scale. We discuss the previous experiment with emphasis on necessary developments to be done and corresponding ongoing research work of German Aerospace Center (DLR) and Ludwig Maximilians University Munich (LMU). DLR is performing research on satellite and ground terminals for the high-rate laser communication component, which are enabling technologies for the QKD link. We describe the concept and hardware of three generations of OSIRIS (Optical High Speed Infrared Link System) laser communication terminals for low Earth orbiting satellites. The first type applies laser beam pointing solely based on classical satellite control, the second uses an optical feedback to the satellite bus and the third, currently being in design phase, comprises of a special coarse pointing assembly to control beam direction independent of satellite orientation. Ongoing work also targets optical terminals for CubeSats. A further increase of beam pointing accuracy can be achieved with a fine pointing assembly. Two ground stations will be available for future testing, an advanced stationary ground station and a transportable ground station. In parallel the LMU QKD source size will be reduced by more than an order of magnitude thereby simplifying its integration into future free-space optical communication links with CubeSats. © (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.

Item URL in elib:https://elib.dlr.de/104766/
Document Type:Conference or Workshop Item (Speech)
Title:Aerospace laser communications technology as enabler for worldwide quantum key distribution
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Moll, Florianflorian.moll (at) dlr.deUNSPECIFIED
Weinfurter, HaraldLMUUNSPECIFIED
Schmidt, Christopherchristopher.schmidt (at) dlr.deUNSPECIFIED
Nauerth, Sebastianqutools GmbHUNSPECIFIED
Fuchs, Christianchristian.fuchs (at) dlr.deUNSPECIFIED
Date:May 2016
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1117/12.2230232
Page Range:99000K-1
Keywords:Free-space optical communications, quantum key distribution, low earth orbit, CubeSat, air-ground experiment
Event Title:Quantum Optics
Event Location:Brussels, Belgium
Event Type:international Conference
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Multimedia Satellitennetze, R - Projekt PROSIRIS, V - Vabene++ (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Moll, Florian
Deposited On:22 Jun 2016 16:37
Last Modified:31 Jul 2019 20:02

Repository Staff Only: item control page

Help & Contact
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.