Flat waveguides enabling ultra-compact wafer-based atomic clocks

Benjamin Gallinet; Jacques Haesler; Roger Krähenbühl; Steve Lecomte; Guillaume Basset

doi:10.1117/12.2649283

9 March 2023 Flat waveguides enabling ultra-compact wafer-based atomic clocks

Benjamin Gallinet, Jacques Haesler, Roger Krähenbühl, Steve Lecomte, Guillaume Basset

Proceedings Volume PC12447, Quantum Sensing, Imaging, and Precision Metrology; PC124470D (2023) https://doi.org/10.1117/12.2649283
Event: SPIE Quantum West, 2023, San Francisco, California, United States

Abstract

Quantum sensing devices such as atomic clocks enable unmatched precision in various area of metrology. Initially bulky laboratory devices, it is of great interest to miniaturize them to lower their energy consumption and deploy them in many embedded and mobile systems. To allow a dramatic cost reduction and miniaturization, CSEM developed and tested with success miniature atomic clocks based on wafer-level processes. On top of the control electronics and the atomic vapor cells, the optical design, the optical components and their assembly have been fully redesigned to be wafer-level fabricated. To achieve low aspect ratio and integrated optical management, thin glass planar waveguides have been implemented allowing to transport and beam shape the interrogating beam going from and to the atomic vapor gas cell. This proved a much simpler wafer scale assembly process, a monolithic construction less prone to single component alignment issues and provide much more compact atomic clocks

Conference Presentation

Citation Download Citation

Benjamin Gallinet, Jacques Haesler, Roger Krähenbühl, Steve Lecomte, and Guillaume Basset "Flat waveguides enabling ultra-compact wafer-based atomic clocks", Proc. SPIE PC12447, Quantum Sensing, Imaging, and Precision Metrology, PC124470D (9 March 2023); https://doi.org/10.1117/12.2649283

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