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Q: Fachverband Quantenoptik und Photonik
Q 56: Poster VII
Q 56.31: Poster
Donnerstag, 14. März 2024, 17:00–19:00, KG I Foyer
Towards demonstrating a rubidium based optical clock in space — •Nicolas Manrique1,2, Moritz Eisebitt1,2, Stephanie Gerken1, Julien Kluge1,2, Daniel Emanuel Kohl1,2, Mathis Müller1, Norbert Müller1, Max Schiemangk1, Dian Zou1, Klaus Döringshoff1,2, Andreas Wicht1, Markus Krutzik1,2, and the QUEEN/CRONOS Team1,3,4 — 1Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik — 2Institut für Physik - Humboldt-Universität zu Berlin — 3Institut für Luft- und Raumfahrt - Technische Universität Berlin — 4Menlo Systems GmbH
The QUEEN mission aims to demonstrate an optical atomic clock aboard a micro-satellite in low-earth orbit. The optical clock payload named CRONOS includes a micro-integrated extended cavity diode laser, whose frequency is stabilized to a narrow linewidth Rubidium two-photon transition at 778 nm. A space-borne optical frequency comb transfers the frequency stability of the laser system to the RF regime, providing an electrical clock output at 10 MHz with targeted fractional frequency instabilities better than 3×10−13/√τ over time scales from 1 s to 105 s.
Here we present the current design and architecture of the CRONOS payload, targeting a maximum volume of 25 L, mass of 20 kg, and power consumption under 60 W, which shall operate two years in orbit.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry for Economic Affairs and Climate Action (BMWK) due to an enactment of the German Bundestag under grant numbers 50WM2164.