Erlangen 2022 – wissenschaftliches Programm
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A: Fachverband Atomphysik
A 18: Precision Measurements and Metrology V (joint session Q/A)
A 18.3: Vortrag
Mittwoch, 16. März 2022, 14:30–14:45, Q-H11
Rubidium vapor-cell frequency reference based on 5S to 5D two-photon transition for space applications — •Julien Kluge1,2, Klaus Döringshoff1,2, Daniel Emanuel Kohl1, Aaron Strangfeld1,2, and Markus Krutzik1,2 — 1Institut für Physik, Humboldt-Universität zu Berlin — 2Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik
Optical frequency standards based on two-photon spectroscopy using rubidium vapor are a promising candidate for realization of simple and compact optical clocks for space applications.
In this presentation, we show the development of an optical clock working at the rubidium 5S to 5D two-photon transition at 778 nm. For short timescales, a fractional frequency in-stability in the order of 10−13 is achieved in a setup with a small size, weight and power (SWaP) budget. Details of the corresponding vapor cell assembly, the supporting simulations and its parameters are shown as well. Recent progress towards miniaturization and automated operation of the physics package enables the future development of a compact and reliable setup to meet the stringent requirements of a prospective space mission.
This work is supported by the German Space Agency (DLR) with funds provided by the Federal Ministry of Economics and Technology (BMWi) under grant numbers 50RK1971, 50WM2164.