Rostock 2019 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 57: Poster: Quantum Optics and Photonics III
Q 57.31: Poster
Thursday, March 14, 2019, 16:15–18:15, S Fobau Physik
QUEEN: Design Study and Ground Testbed for Two-Photon Optical Frequency References on Small Satellites — •Sven-E. Reher1, Akash Kaparthy1,3, Aline N. Dinkelaker1, Merlin Barschke3, Markus Krutzik1,2, and The QUEEN Team1,2,3,4 — 1Humboldt-Universität zu Berlin — 2Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik — 3Technische Universität Berlin — 4QUARTIQ GmbH
As part of the design study QUEEN, we explore frequency references based on a 778 nm two-photon transition of 85Rb as payload on small satellites. Space-based frequency references have application in current and planned earth-observation and fundamental science missions, where inter-spacecraft ranging relies on stabilized lasers. In this context, the system has to be compact, robust, and energy efficient. To study payload architectures and systematic effects, a ground testbed is set up. Currently, cell heating, isolation, and thermal management options are investigated alongside ongoing radiation tests of optical components. As satellite platform, the modular, flightproven TUBiX20 platform will be adapted to match the payload’s requirements. In this poster we will report on the status of the QUEEN mission, discuss our payload design and show recent results on our qualification and test activities.
The QUEEN project is supported by the German Space Agency DLR with funds provided by the Federal Ministry for Economic Affairs and Energy (BMWi) under grant numbers 50 WM 1753-1755 and 50 WM 1857-1859.