Two-photon rubidium clock detecting 776 nm fluorescence

The optical atomic clock based on the 5S  → 5D two-photon transition in rubidium is a candidate for a next generation, manufacturable, portable clock that fits in a small size, weight, and power (SWaP) envelope. Here, we report the first two-photon rubidium clock stabilized by detecting 776 nm fluor...

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Bibliographic Details
Published in:Optics express 2024-02, Vol.32 (5), p.7417-7425
Main Authors: Beard, River, Martin, Kyle W, Elgin, John D, Kasch, Brian L, Krzyzewski, Sean P
Format: Article
Language:English
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Summary:The optical atomic clock based on the 5S  → 5D two-photon transition in rubidium is a candidate for a next generation, manufacturable, portable clock that fits in a small size, weight, and power (SWaP) envelope. Here, we report the first two-photon rubidium clock stabilized by detecting 776 nm fluorescence. We also demonstrate the use of a multi-pixel photon counter as a low voltage substitute to a photomultiplier tube in the feedback loop to the clock laser.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.513974