TY - JOUR
T1 - SI-traceable frequency dissemination at 1572.06 nm in a stabilized fiber network with ring topology
AU - Husmann, Dominik
AU - Bernier, Laurent-Guy
AU - Bertrand, Mathieu
AU - Calonico, Davide
AU - Chaloulos, Konstantinos
AU - Clausen, Gloria
AU - Clivati, Cecilia
AU - Faist, Jérôme
AU - Heiri, Ernst
AU - Hollenstein, Urs
AU - Johnson, Anatoly
AU - Mauchle, Fabian
AU - Meir, Ziv
AU - Merkt, Frédéric
AU - Mura, Alberto
AU - Scalari, Giacomo
AU - Scheidegger, Simon
AU - Schmutz, Hansjürg
AU - Sinhal, Mudit
AU - Willitsch, Stefan
AU - Morel, Jacques
PY - 2021/8/2
Y1 - 2021/8/2
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85110346405&partnerID=8YFLogxK
U2 - 10.1364/OE.427921
DO - 10.1364/OE.427921
M3 - Article
SN - 1094-4087
VL - 29
SP - 24592
EP - 24605
JO - Optics Express
JF - Optics Express
IS - 16
ER -