Mainz 2026 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 39: Poster – Precision Measurement (joint session Q/A)
A 39.14: Poster
Donnerstag, 5. März 2026, 17:00–19:00, Philo 2. OG
Tuning and preparation of a laser system for airborne atom interferometry — •Alisa Ukhanova1, Julia Pahl1, Markus Krutzik1,2, and the AeroQGrav team1,3,4,5,6,7,8,9 — 1Humboldt-Universität zu Berlin, Institut für Physik — 2Ferdinand-Braun-Institut (FBH), Leibniz-Institut für Höchstfrequenztechnik, Berlin — 3LUH, Hannover — 4DLR, Hannover — 5TUB, Braunschweig — 6BKG, Leipzig — 7TUC, Clausthal — 8Geo++®GmbH, Garbsen — 9iMAR Navigation GmbH, Ingbert
The "AeroQGrav" project strives to demonstrate an airborne atomic gravimeter, with a higher spatial and temporal resolution and a better long-term stability compared to the existing commercial solutions.
We develop a compact and robust modular flight laser system. Three functional modules provide the light fields for laser cooling of 87Rb atoms in 2D- and 3D-magneto-optical traps, Raman interferometry, and state detection during flight. This poster highlights the design, assembly and verification of the system, with an emphasis on frequency stabilization methods. Our laser system meets the requirements arising from aircraft operation.
Future work will focus on a detailed characterization of the laser system to validate its performance under flight conditions. This project is supported by the VDI Technologiezentrum GmbH with funds provided by the Federal Ministry of Education and Research (BMBF) under grant number 13N16518.
Keywords: laser system; airborn gravimetry; Raman interferometry; rubidium; MTS reference frequency