Details
| Original language | English |
|---|---|
| Article number | 123017 |
| Journal | New journal of physics |
| Volume | 21 |
| Issue number | 12 |
| Publication status | Published - 13 Dec 2019 |
| Externally published | Yes |
Abstract
We investigate optical frequency dissemination over a 1400 km long fiber link in looped configuration over a pair of underground fibers between Braunschweig and Strasbourg. This fiber link is the first to combine fiber Brillouin amplifiers with a repeater laser station. Phase-coherent operation over more than five days is demonstrated. We analyze the repeatability of the performance over four campaigns and present results of 65 d in total. The weighted mean of the fractional frequency offset of the transferred optical frequency over the complete data set is (-1.1 ± 0.4) 10-20. By analyzing the stabilization signals of the two individual fibers, the correlation of the phase noise on the two fibers is shown to be >98%.
Keywords
- frequency transfer, optical atomic clocks, optical fiber link
ASJC Scopus subject areas
- Physics and Astronomy(all)
- General Physics and Astronomy
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In: New journal of physics, Vol. 21, No. 12, 123017, 13.12.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Combining fiber Brillouin amplification with a repeater laser station for fiber-based optical frequency dissemination over 1400 km
AU - Koke, Sebastian
AU - Kuhl, Alexander
AU - Waterholter, Thomas
AU - Raupach, Sebastian M.F.
AU - Lopez, Olivier
AU - Cantin, Etienne
AU - Quintin, Nicolas
AU - Amy-Klein, Anne
AU - Pottie, Paul Eric
AU - Grosche, Gesine
N1 - Funding information: This work has been funded by the European Metrology Programme for Innovation and Research (EMPIR) in project 15SIB05 (OFTEN) and 18SIB06 (TiFOON). The EMPIR is jointly funded by the EMPIR participating countries withinEURAMET and the European Union. PTB thanks the DFGfor financial support in the Sonderforschungsbereich 1128 'Relativistic Geodesy and Gravimetry with Quantum Sensors (geo-Q) under project A04 and in the Exzellenzcluster 2123 'QuantumFrontiers . LNE-SYRTE and LPL acknowledge support from the Agence Nationale de la Recherche (ANRblanc LIOM 2011-BS04-009-01, Labex First-TFANR10 LABX 48 01, Equipex REFIMEVE+ANR-11-EQPX-0039).
PY - 2019/12/13
Y1 - 2019/12/13
N2 - We investigate optical frequency dissemination over a 1400 km long fiber link in looped configuration over a pair of underground fibers between Braunschweig and Strasbourg. This fiber link is the first to combine fiber Brillouin amplifiers with a repeater laser station. Phase-coherent operation over more than five days is demonstrated. We analyze the repeatability of the performance over four campaigns and present results of 65 d in total. The weighted mean of the fractional frequency offset of the transferred optical frequency over the complete data set is (-1.1 ± 0.4) 10-20. By analyzing the stabilization signals of the two individual fibers, the correlation of the phase noise on the two fibers is shown to be >98%.
AB - We investigate optical frequency dissemination over a 1400 km long fiber link in looped configuration over a pair of underground fibers between Braunschweig and Strasbourg. This fiber link is the first to combine fiber Brillouin amplifiers with a repeater laser station. Phase-coherent operation over more than five days is demonstrated. We analyze the repeatability of the performance over four campaigns and present results of 65 d in total. The weighted mean of the fractional frequency offset of the transferred optical frequency over the complete data set is (-1.1 ± 0.4) 10-20. By analyzing the stabilization signals of the two individual fibers, the correlation of the phase noise on the two fibers is shown to be >98%.
KW - frequency transfer
KW - optical atomic clocks
KW - optical fiber link
UR - http://www.scopus.com/inward/record.url?scp=85081288913&partnerID=8YFLogxK
U2 - 10.1088/1367-2630/ab5d95
DO - 10.1088/1367-2630/ab5d95
M3 - Article
AN - SCOPUS:85081288913
VL - 21
JO - New journal of physics
JF - New journal of physics
SN - 1367-2630
IS - 12
M1 - 123017
ER -