Bonn 2025 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 26: Poster – Precision Measurement, Metrology, and Quantum Effects

Q 26.11: Poster

Tuesday, March 11, 2025, 14:00–16:00, Tent

Laser stabilization for a compact inertial navigation system — •Philipp Barbey, Mouine Abidi, Xingrun Chen, Ashwin Rajagopalan, Ann Sabu, Polina Shelingovskaia, Matthias Gersemann, Dennis Schlippert, Ernst M. Rasel, and Sven Abend — Leibniz Universität Hannover - Institut für Quantenoptik, Hannover, Germany

The use of cold and ultracold atoms in light-pulse atom interferometry provides highly accurate measurements of inertial forces, with an emphasis on long-term stability. Especially inertial measurement systems for navigation are driving the development of advanced technologies. To deploy these sensors in practical field applications, significant progress is needed in creating compact and scalable technologies.

We present a new laser stabilization system for our atom interferometer, utilizing digital electronics based on the ARTIQ/Sinara experiment control framework. This system allows stabilization of our laser to a rubidium spectroscopy, while a frequency offset lock enables driving different transitions necessary for cooling and trapping atoms. This digital approach makes parameter adjustments easier, and the use of off-the-shelf components simplifies installation.

We acknowledge financial support by the DFG EXC2123 QuantumFrontiers - 390837967 and by the DLR with funds provided by BMWK under Grant No. DLR 50NA2106 (QGyro+).

Keywords: Atom interferometry; Quantum sensing; Bose-Einstein condensation; Inertial navigation; Experiment control