Hannover 2020 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 32: Precision Measurements and Metrology (Optical Clocks)
Q 32.6: Vortrag
Mittwoch, 11. März 2020, 15:15–15:30, a310
Towards a strontium beam optical frequency reference based on the 1S0 → 3P1 intercombination line on a sounding rocket — •Martin Jutisz1, Oliver Fartmann1, Conrad L. Zimmermann1, Franz B. Gutsch1, Vladimir Schkolnik1, Frederik Böhle2, Matthias Lezius2, Ahmad Bawamia3, Christoph Pyrlik3, Achim Peters1, 3, Ronald Holzwarth2, Andreas Wicht3, and Markus Krutzik1, 3 — 1Humboldt Universität zu Berlin — 2Menlo Systems GmbH, Martinsried — 3Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, Berlin
Compact and rugged optical clocks and frequency references receive increased attention with respect to spaceborne operation as inter-spacecraft ranging often relies on frequency stabilized lasers and optical clocks are candidates for next-generation GNSS core equipment. In the OPUS project, we are working towards a compact sounding rocket payload consisting of a strontium beam optical frequency reference and a frequency comb. We utilize the 7.5 kHz broad 1S0 → 3P1 intercombination line in 88Sr for Ramsey-Bordé interferometry with a pre-stabilized 689 nm ECDL. Furthermore, we employ electron shelving detection on the 32 MHz broad 1S0 → 1P1 line at 461 nm for reading out the interference fringes. We will give an overview on the system architecture, present first results of the ground testbed activities and discuss an expected error budget. This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant number DLR50WM1851-53.