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Opticlock: Transportable and easy-to-operate optical single-ion clock

J. Stuhler1, M.A. Hafiz2, B. Arar3, A. Bawamia3, K.  Bergner4, M. Biethahn4, S. Brakhane1,5, A. Didier2, J. Fortágh6, M. Halder7, R. Holzwarth7, N. Huntemann2, M. Johanning8, R. Jördens9, W. Kaenders1, F. Karlewski6, F. Kienle1, M. Krutzik10, M. Lessing7, T.E. Mehlstäubler2, D. Meschede5, E. Peik2, A. Peters3,10, P.O. Schmidt2, H. Siebeneich8, C. Tamm2, E. Vogt11, A. Wicht3, C. Wunderlich8, J. Yu2,7

Published in:

Meas.: Sens., vol. 18, art. 100264, doi:10.1016/j.measen.2021.100264 (2021).


We report on a transportable and easy-to-operate optical clock utilizing the 2S1/2 - 2D3/2 transition of a single trapped 171Yb+ ion at 436 nm. Developed within a pilot project for quantum technology in Germany lead by industry, the clock is set up in two 19" racks. In this way, transportation can easily be realized, and the large degree of automatization allows for operation outside highly specialized laboratories for applications beyond basic research. Comparisons to existing high-accuracy optical clock systems enable a verification of the clock’s stability and uncertainty budget at the low 10-17 level. During these tests, operation with 99.8% availability over more than 14 days has been achieved.

1 TOPTICA Photonics AG, Gräfelfing, Germany
2 Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
3 Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, Berlin, Germany
4 VACOM Vakuum Komponenten & Messtechnik GmbH, Großlöbichau, Germany
5 Universität Bonn, Bonn, Germany
6 HighFinesse GmbH, Tübingen, Germany
7 Menlo Systems GmbH, Planegg, Germany
8 Faculty of Science and Technology, Department of Physics, University of Siegen, Siegen, Germany
9 QUARTIQ GmbH, Berlin, Germany
10 Institut für Physik, Humboldt-Universität zu Berlin, Berlin, Germany
11 QUBIG GmbH, Munich, Germany

Copyright © 2021 International Measurement Confederation. Published by Elsevier Ltd.

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