Dr
Dominik Husmann
(Federal Institute of Metrology METAS)
Frequency dissemination in phase-stabilized optical fiber networks has become a state-of-the-art tool for metrological frequency comparisons and precision measurements. The recently established Swiss frequency metrology network spanning 456 km of fibers connects METAS to the University of Basel and ETH Zurich. This network enables dissemination of optical frequencies, referenced to the SI-traceable atomic clocks from METAS, to precision spectroscopy laboratories at the universities, with a fractional frequency link instability as low as $3.8\times10^{-19}$ at 2000 s integration time. We report on the state of the network and demonstrate its application in an SI-traceable measurement and stabilization of the absolute frequency of a spectroscopy laser in a remote laboratory.
Dr
Dominik Husmann
(Federal Institute of Metrology METAS)
Mr
Laurent-Guy Bernier
(Federal Institute of Metrology METAS)
Mr
Mathieu Bertrand
(Institute for Quantum Electronics, ETH Zürich)
Mr
Davide Calonico
(INRIM Istituto Nazionale di Ricerca Metrologica)
Mr
Konstantinos Chaloulos
(SWITCH)
Mrs
Gloria Clausen
(Laboratory of Physical Chemistry, ETH Zürich)
Mrs
Cecilia Clivati
(INRIM Istituto Nazionale di Ricerca Metrologica)
Prof.
Jérôme Faist
(Institute for Quantum Electronics, ETH Zürich)
Mr
Ernst Heiri
(SWITCH)
Mr
Urs Hollenstein
(Laboratory of Physical Chemistry, ETH Zürich)
Mr
Anatoly Johnson
(Department of Chemistry, University of Basel)
Mr
Fabian Mauchle
(SWITCH)
Mr
Ziv Meir
(Department of Physics of Complex Systems, Weizmann Institute)
Prof.
Frédéric Merkt
(Laboratory of Physical Chemistry, ETH Zürich)
Mr
Alberto Mura
(INRIM Istituto Nazionale di Ricerca Metrologica)
Mr
Giacomo Scalari
(Institute for Quantum Electronics, ETH Zürich)
Mr
Simon Scheidegger
(Laboratory of Physical Chemistry, ETH Zürich)
Mr
Hansjürg Schmutz
(Laboratory of Physical Chemistry, ETH Zürich)
Mr
Mudit Sinhal
(Department of Chemistry, University of Basel)
Prof.
Stefan Willitsch
(Department of Chemistry, University of Basel)
Mr
Jacques Morel
(Federal Institute of Metrology METAS)
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