SI-traceable frequency dissemination at 1572.06 nm in a stabilized fiber network with ring topology

Autor: Frédéric Merkt, Gloria Clausen, Jacques Morel, Hansjürg Schmutz, Giacomo Scalari, Ziv Meir, Laurent-Guy Bernier, Mudit Sinhal, Anatoly Johnson, Stefan Willitsch, Dominik Husmann, Davide Calonico, Konstantinos Chaloulos, Mathieu Bertrand, Fabian Mauchle, U. Hollenstein, Alberto Mura, Ernst Heiri, Jérôme Faist, Cecilia Clivati, Simon Scheidegger
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Optics Express
Optics Express, 29 (16)
ISSN: 1094-4087
Popis: Frequency dissemination in phase-stabilized optical fiber networks for metrological frequency comparisons and precision measurements are promising candidates to overcome the limitations imposed by satellite techniques. However, in an architecture shared with telecommunication data traffic, network constraints restrict the availability of dedicated channels in the commonly-used C-band. Here, we demonstrate the dissemination of an SI-traceable ultrastable optical frequency in the L-band over a 456 km fiber network with ring topology, in which data traffic occupies the full C-band. We characterize the optical phase noise and evaluate a link instability of 4.7 × 10-16 at 1 s and 3.8 × 10-19 at 2000 s integration time, and a link accuracy of 2 × 10-18. We demonstrate the application of the disseminated frequency by establishing the SI-traceability of a laser in a remote laboratory. Finally, we show that our metrological frequency does not interfere with data traffic in the telecommunication channels. Our approach combines an unconventional spectral choice in the telecommunication L-band with established frequency-stabilization techniques, providing a novel, cost-effective solution for ultrastable frequency-comparison and dissemination, and may contribute to a foundation of a world-wide metrological network.
Optics Express, 29 (16)
ISSN:1094-4087
Databáze: OpenAIRE