Hybrid quantum accelerometer-gyroscope for autonomous navigation

C. Salducci; Y. Bidel; M. Cadoret; N. Zahzam; C. Blanchard; A. Bonnin; S. Schwartz; A. Bresson

doi:10.1117/12.3016752

6 June 2024 Hybrid quantum accelerometer-gyroscope for autonomous navigation

C. Salducci, Y. Bidel, M. Cadoret, N. Zahzam, C. Blanchard, A. Bonnin, S. Schwartz, A. Bresson

Proceedings Volume PC12993, Quantum Technologies 2024; PC129930M (2024) https://doi.org/10.1117/12.3016752
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Conference Poster

Abstract

We present our first results concerning a compact dual cold atom accelerometer-gyroscope, which is incorporated within the framework of the development of a cold atom inertial measurement unit. The sensor is sensitive to rotations if the atoms enter the interferometer with an initial velocity. We therefore propose a scheme compatible with a compact multi-axis sensor in which the atoms are horizontally launched thanks to a magnetic gradient and interrogated with a single Raman laser. In this work, the quantum sensor has been hybridized with a conventional accelerometer and gyroscope, which has resulted in respectively 100-fold and 5-fold bias stability improvements compared to the conventional sensors alone. Dynamic rotation rate measurements have also been performed and demonstrated a 1% agreement between the two sensors. This work provides a pathway towards autonomous navigation using cold-atom sensors.

Citation Download Citation

C. Salducci, Y. Bidel, M. Cadoret, N. Zahzam, C. Blanchard, A. Bonnin, S. Schwartz, and A. Bresson "Hybrid quantum accelerometer-gyroscope for autonomous navigation", Proc. SPIE PC12993, Quantum Technologies 2024, PC129930M (6 June 2024); https://doi.org/10.1117/12.3016752

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