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Red-Emitting Distributed Bragg Reflector Lasers for Strontium-Based Optical Atomic Clocks

N. Goossen-Schmidt1, C. Pyrlik1,2, B. Arar1, M.T. Hassan1, A. Bawamia1, J. Fricke1, A. Knigge1, A. Maaßdorf1, M. Schiemangk1, H. Wenzel1, and A. Wicht1

Published in:

Conf. on Lasers and Electro-Optics/Europe and European Quantum Electronics Conf. (CLEO/Europe-EQEC 2023), Munich, Germany, Jun. 26-30, ISBN: 979-8-3503-4599-5, cb-10-4 (2023).


Optical atomic clocks based on the spectroscopy of strontium (Sr) atoms currently provide the most accurate time and frequency measurements. They reach fractional frequency uncertainties in the range of 10−18 [1], which makes them promising candidates for the redefinition of the second and for improving, for example, the accuracy of satellite navigation.

1 Ferdinand-Braun-Institut gGmbH, Leibniz-Institut für Höchstfrequenztechnik, Gustav-Kirchhoff-Straße 4, 12489 Berlin, Germany
2 C. Pyrlik is now with the Institut für Physik, Humboldt-Universität zu Berlin, Newtonstraße 15, 12489 Berlin, Germany

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