Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Optical Fiber Technology

Implementation of ultrastable microwave frequency transfer with optical–electrical–optical relay stations over long-distance urban fiber link

Shaoshao Yu, Wenxiang Xue, Wenyu Zhao, Shougang Zhang

Published Sep 23, 2024• 0 citations
Publisher
DOI
10.1016/j.yofte.2024.103982

Related papers

High-resolution microwave frequency dissemination on an 86-km urban optical link

Olivier Lopez, Anne Amy‐Klein, M. Lours +2 more

arXiv:0907.3500•Applied Physics B•Nov 20, 2009•172 citations

Long-distance ultrastable frequency transfer over urban fiber link: toward a European network

F. Kéfélian, Haifeng Jiang, Olivier Lopez +3 more

Experiments of transmission of sub-Hz cavity-stabilized 1542 nm laser frequency using a pair of 43 km dark fibers in urban environment are reported on successively 86 km and 172 km, with fractional frequency instability in the 10-19 range. A new approach is then introduced consisting in using part of an optical telecommunications network carrying simultaneously data traffic using a DWDM scheme to multiplex the metrological signal. This method is experimentally implemented using 22 km of fiber linking Université Paris 13 to its internet access point without degradation of the link instability. We finally present a project of large scale link between Paris and the German border using RENATER network which could constitute the first step of the building of a European optical network for ultrastable frequency dissemination and comparison.

Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Aug 20, 2009•2 citations

MICROWAVE AND OPTICAL FREQUENCY TRANSFER VIA OPTICAL FIBRE

Giuseppe Marra, S.N. Lea, Helen S. Margolis +1 more

Symposium on Frequency Standards and Metrology•May 1, 2009•0 citations

Long-distance frequency transfer over an urban fiber link using optical phase stabilization

Haifeng Jiang, F. Kéfélian, S. G. Crane +8 more

We transferred the frequency of an ultrastable laser over 86 km of urban fiber. The link is composed of two cascaded 43 km fibers connecting two laboratories, Laboratoire National de Métrologie et d'Essais-Systèmes de Référence Temps-Espace (LNE-SYRTE) and Laboratoire de Physique des Lasers (LPL), in the Paris area. In an effort to realistically demonstrate a link of 172 km without using spooled fiber extensions, we implemented a recirculation loop to double the length of the urban fiber link. The link is fed with a 1542 nm cavity-stabilized fiber laser having a sub-Hz linewidth. The fiber-induced phase noise is measured and cancelled with an all fiber-based interferometer using commercial off-the-shelf pigtailed telecommunication components. The compensated link shows an Allan deviation of a few 10−16 at one second and a few 10−19 at 10,000 seconds.

arXiv:0807.1882•Journal of the Optical Society of America B•Nov 18, 2008•166 citations

Transmission of an optical frequency through a 3 km long optical fiber

B. de Beauvoir, F. Nez, Laurent Hilico +7 more

The European Physical Journal D•Feb 1, 1998•24 citations

High-precision optical frequency transfer over a 96 km urban fiber link

Lei Liu, Nan Cheng, Jialiang Wang +4 more

We demonstrated the optical frequency transfer over a 96 km urban business network in Shanghai. The key factors affecting the optical frequency transmission system, such as fiber link quality, feedback compensation strength, and out-of-loop fiber temperature variation, are studied for the urban fiber link characteristics. The effective suppression technique of complex urban fiber link noise with different feedback compensation parameters is studied. With active phase noise suppression, the optical frequency stability can reach 1.9 × 10 − 16 at 1 s and 2.2 × 10 − 18 at 10,000 s over a 96 km urban fiber link. This work potentially plays an important role in optical clock frequency comparison, and it makes a good foundation for future research on long-distance optical frequency transfer over an urban business network.

Applied Optics•Dec 14, 2022•4 citations
Experiments of transmission of sub-Hz cavity-stabilized 1542 nm laser frequency using a pair of 43 km dark fibers in urban environment are reported on successively 86 km and 172 km, with fractional frequency instability in the 10-19 range. A new approach is then introduced consisting in using part of an optical telecommunications network carrying simultaneously data traffic using a DWDM scheme to multiplex the metrological signal. This method is experimentally implemented using 22 km of fiber linking Université Paris 13 to its internet access point without degradation of the link instability. We finally present a project of large scale link between Paris and the German border using RENATER network which could constitute the first step of the building of a European optical network for ultrastable frequency dissemination and comparison.
We transferred the frequency of an ultrastable laser over 86 km of urban fiber. The link is composed of two cascaded 43 km fibers connecting two laboratories, Laboratoire National de Métrologie et d'Essais-Systèmes de Référence Temps-Espace (LNE-SYRTE) and Laboratoire de Physique des Lasers (LPL), in the Paris area. In an effort to realistically demonstrate a link of 172 km without using spooled fiber extensions, we implemented a recirculation loop to double the length of the urban fiber link. The link is fed with a 1542 nm cavity-stabilized fiber laser having a sub-Hz linewidth. The fiber-induced phase noise is measured and cancelled with an all fiber-based interferometer using commercial off-the-shelf pigtailed telecommunication components. The compensated link shows an Allan deviation of a few 10−16 at one second and a few 10−19 at 10,000 seconds.
We demonstrated the optical frequency transfer over a 96 km urban business network in Shanghai. The key factors affecting the optical frequency transmission system, such as fiber link quality, feedback compensation strength, and out-of-loop fiber temperature variation, are studied for the urban fiber link characteristics. The effective suppression technique of complex urban fiber link noise with different feedback compensation parameters is studied. With active phase noise suppression, the optical frequency stability can reach 1.9 × 10 − 16 at 1 s and 2.2 × 10 − 18 at 10,000 s over a 96 km urban fiber link. This work potentially plays an important role in optical clock frequency comparison, and it makes a good foundation for future research on long-distance optical frequency transfer over an urban business network.