Author Affiliations

E. Obrzud,^1,2 M. Rainer,³ A. Harutyunyan,⁴ M.H. Anderson,⁵ J. Liu,⁵ M. Geiselmann,^5,6 B. Chazelas,² S. Kundermann,¹ S. Lecomte,¹ M. Cecconi,⁴ A. Ghedina,⁴ E. Molinari,^4,7 F. Pepe,² F. Wildi,² F. Bouchy,² T.J. Kippenberg,⁵ and T. Herr^1,*

¹Swiss Center for Electronic and Microtechnology (CSEM), Time and frequency, Rue de l’Observatoire 58, 2002 Neuchâtel, Switzerland

²Geneva Observatory/PlanetS, Department of Astronomy, University of Geneva, Chemin des Maillettes 51, 1290 Versoix, Switzerland

³National Institute of Astrophysics (INAF), Astronomical Observatory of Brera, Via Brera 28, 20121 Milano, Italy

⁴Fundación Galileo Galilei - INAF, Rambla José Ana Fernández Pérez 7, 38712 Breña Baja, Santa Cruz de Tenerife, Spain

⁵Swiss Federal Institute of Technology (EPFL), SB IPHYS LPQM1, PH D3, Station 3, 1015 Lausanne, Switzerland

⁶Ligentec, EPFL Innovation Park, Bâtiment C, 1015 Lausanne, Switzerland

⁷INAF - Osservatorio Astronomico di Cagliari, Via della Scienza 5 - 09047 Selargius (CA), Italy

^*Corresponding author: tobias.herr@csem.ch