Operational utilisation of absolute quantum gravimeters

Peter Rosenbusch

doi:10.1117/12.2691690

13 March 2024 Operational utilisation of absolute quantum gravimeters

Peter Rosenbusch

Proceedings Volume PC12912, Quantum Sensing, Imaging, and Precision Metrology II; PC129121D (2024) https://doi.org/10.1117/12.2691690
Event: SPIE Quantum West, 2024, San Francisco, California, United States

Abstract

In 2015 Exail launched on the marketplace the first gravimeter based on quantum manipulation of laser-cooled atoms. Phase-locked Raman beams open an 87Rb atom interferometer sensitive to the vertical acceleration. Thorough technology developments like frequency-doubled telecom lasers and micro-optic benches had brought the autonomy and robustness necessary for field-deployment. We will present a 3-years measurement campaign on Mt Etna, Sicily, an active volcano. We will furthermore demonstrate the reproducible performances of 10^-9 g resolution after < 2h measurement time (< 40 min on a quiet site) confirmed on all 15 built units. On-going research evaluates systematic effects to 10^-9 g or better. Future projects will bring our quantum gravimeters to moving platforms.

Conference Presentation

Citation Download Citation

Peter Rosenbusch "Operational utilisation of absolute quantum gravimeters", Proc. SPIE PC12912, Quantum Sensing, Imaging, and Precision Metrology II, PC129121D (13 March 2024); https://doi.org/10.1117/12.2691690

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