Doppler-stabilized fiber link with 6 dB noise improvement below the classical limit
Open accessAbstract
It is known that temperature variations and acoustic noise affect ultrastable frequency dissemination along optical fiber. Active stabilization techniques are adopted to compensate for the fiber-induced phase noise. However, despite this compensation, the ultimate link performances are limited by the delay-unsuppressed noise that is related to the propagation delay of the light in the fiber. We demonstrate a post-processing approach which enables us to overcome this limit. We implement a subtraction algorithm between the optical signal delivered at the remote link end and the round-trip signal. In this way, a 6 dB improvement beyond the delay-unsuppressed noise is obtained. We confirm the prediction with experimental data obtained on a 47 km metropolitan fiber link and propose how to extend this method for frequency dissemination.
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Phase-coherent telecom fibre links are extremely powerful tools for frequency dissemination on a continental scale.
“Complemented by phase-coherent telecom fibre links9101112 as extremely powerful tools for frequency dissemination on a continental scale”
From A clock network for geodesy and fundamental science (2016) · cites this paper as [11]
The passage labeled Abstract (p. 2) calls optical fiber links a key tool for frequency dissemination and describes coherent links using standard telecom fiber. But the reported experiment used a 47 km metropolitan link (Abstract, pp. 1, 3); our copy does not establish frequency dissemination on a continental scale. (LLM, conf=0.84)
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References 24 · Cited by 23
Research works printed but not linked: 6
- [4]F. Levi, R. Ambrosini, D. Calonico, C. E. Calosso, C. Clivati, G. A. Costanzo, P. De Natale, D. Mazzotti, M. Frittelli, G. Galzerano, A. Mura, D. Sutyrin, G. M. Tino, M. E. Zucco, N. Poli, in Proceedings of the Joint UFFC, EFTF and PFM Symposium (2013) .
- [5]L. ´ Sliwczy´ nski, P. Krehlik, L. Buczek, M. Lipi´ nski, IEEE Trans. Instr. Meas. 61 , 2573 (2012).
- [6]M. Fujieda, M. Kumagai, S. Nagano, IEEE Trans. Ultrason. Ferroel. Freq. Contr. 57 , 168 (2010).
- [14]J.-F. Clich´ e, B. Shillue, IEEE Control Sys. Mag. 26 , 19 (2006).
- [16]C. E. Calosso, in Proceedings of the Joint UFFC, EFTF and PFM Symposium (2013), p. 747 .
- [18]C. Clivati, D. Calonico, C. E. Calosso, G. A. Costanzo, F. Levi, A. Mura, A. Godone, IEEE Trans. Ultrason. Ferroelectr. Freq. Contr. 58 , 2582 (2011).
- Authors
- Calosso, C. E., Bertacco, E. K., Calonico, D., Clivati, C., Costanzo, G. A., Frittelli, M., Levi, F., Micalizio, S., Mura, A., & Godone, A.
- Affiliations
- Istituto Nazionale di Ricerca Metrologica (IT)
- ORCID
- Venue
- Optics Letters
- Publisher
- Optica Publishing Group
- Published
- 2015-01-07
- Volume
- 40
- Issue
- 2
- Pages
- 131
- ISSN
- 0146-9592 (ISSN-L)
- 1539-4794
- OpenAlex
- W1760268901
- Cited by
- 23
- References
- 24
- Citations by year
- 2025: 2 · 2024: 2 · 2023: 3 · 2022: 4 · 2021: 2 · 2019: 1 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 3
- FWCI
- 1.52
- Type
- journal article
- Language
- en
- Open access
- green
- arxiv.org
- Locations
- Optics Letters (publishedVersion)
- PubMed (publishedVersion)
- arXiv (Cornell University) (submittedVersion)
- CINECA IRIS Institutional Research Information System (IRIS Istituto Nazionale di Ricerca Metrologica) (submittedVersion, other-oa)
- PORTO@Iris (submittedVersion, other-oa)
- PORTO Publications Open Repository TOrino (Politecnico di Torino) (submittedVersion, other-oa)
- arXiv (Cornell University)
- Funders
- Compagnia di San Paolo
- European Association of National Metrology Institutes
- European Commission
- Ministero dell’Istruzione, dell’Università e della Ricerca
- Topics
- Physical Sciences › Physics and Astronomy › Atomic and Molecular Physics, and Optics › Advanced Frequency and Time Standards
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Advanced Photonic Communication Systems
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Optical Network Technologies
- Keywords
- fiber links, active stabilization, frequency dissemination
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