Erlangen 2018 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 46: Precision Measurements and Metrology (Optical Clocks) (joint session Q/A)
A 46.6: Vortrag
Freitag, 9. März 2018, 11:45–12:00, K 2.013
QUEEN: Design Study for Optical Frequency References on Small Satellites — •Aline N. Dinkelaker1, Heike Christopher2, Doreen Brandt2, Philipp Werner3, Julian Bartholomäus3, Merlin F. Barschke3, and Markus Krutzik1 — 1Humboldt-Universität zu Berlin — 2FBH Berlin — 3TU Berlin
Optical frequency references are key to fundamental physics experiments involving cold atoms or optical atomic clocks. For future experiments in space, the frequency references have to be compact and robust in order to meet the size, weight and power (SWaP) requirements while providing the experiments with frequency stabilized light of sufficient optical output power. In the Phase 0/A study QUEEN, a mission for the demonstration of optical frequency references is investigated. Small satellites are ideally suited for in-orbit demonstration as they allow rapid, iterative mission development. For QUEEN, the modular, flight-proven TUBiX20 platform by TU Berlin will be adjusted to match the payload’s requirements. We examine the use of a micro-integrated, frequency-stabilized semiconductor diode laser system by HU Berlin and FBH for in-orbit demonstration of an optical frequency reference and present possible mission scenarios. Long-term tests in orbit –specifically with respect to thermal variation and exposure to radiation– thus complement existing experiments in drop towers and on sounding rockets.
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.