Methods for improving the accuracy of reference frequency and time signals transmission using a new fiber-optic modem with phase instability compensation are presented. Algorithms for transmitting a 1PPS pulse time signal with a synchronization error of no more than 200 ps are considered. The results of measurements of the Allan deviation during the transmission of a reference signal with a frequency of 100 MHz through a two-kilometer fiber-optic line with additional external temperature impact are presented. With the help of the developed fiber-optic line emulator, the accuracy of reference signals transmission for fiber lines up to 100 km long, as well as for various external impacts, has been estimated. A full-function device for transmitting and receiving reference frequency and time signals through a fiber-optic communication line up to 100 km long, the instability characteristics of which reach approximately 1–3·10–17 in the daily measurement interval, has been developed.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
M. Fujieda, M. Kumagai, S. Nagano, and T. Gotoh, “UTC (NICT) signals transfer system using optical fibers,” IVS NICT-TDC News, No. 31, 17–20 (2010), https://www2.nict.go.jp/sts/stmg/ivstdc/news_31/pdf/tdcnews_31.pdf, acc. Dec. 1, 2021.
L. Sliwczynski, P. Krehlik, A. Czubla, et al., “Dissemination of time and RF frequency via a stabilized fiber optic link over a distance of 420 km,” Metrologia, 50, No. 2, 133–145 (2013), https://doi.org/10.1088/0026-1394/50/2/133.
S. Huang, M. Calhoun, and R. Tjoelker, “Optical links and RF distribution for antenna arrays,” IEEE International Frequency Control Symposium and Exposition (2006), pp. 637–641, https://doi.org/10.1109/FREQ.2006.275462.
R. S. Kobyakov, S. Yu. Medvedev, K. G. Mishagin, et al., “Development of DPN modem with selectable carrier frequencies, first results of measurements,” Al’man. Sovr. Metrol., No. 2, 73–82 (2020).
C. Daussy, O. Lopez, A. Amy-Klein, et al., “Long-distance frequency dissemination with a resolution of 10–17,” Phys. Rev. Lett., 94, No. 20, 203904 (2005), https://doi.org/10.1103/PhysRevLett.94.203904.
J. Kodet, P. Panek, and I. Prochazka, “Two-way time transfer via optical fiber providing subpicosecond precision and high temperature stability,” Metrologia, 53, No. 1, 18–26 (2016), https://doi.org/10.1088/0026-1394/53/1/18.
R. I. Balaev, D. M. Shibaeva, A. N. Malimon, and A. F. Kurchanov, “Characteristics of phase-stable coaxial and optical cables used for transmitting data on time and frequency standards,” Al’man. Sovr. Metrol., No. 2, 165–179 (2015).
D. M. Fedorova, R. I. Balaev, A. F. Kurchatov, et al., “Dissemination of reference radio frequencies over a fiber-optic line with electronic perturbations compensation,” Izmer. Tekhn., No. 9, 34–37 (2015).
A. V. Zheglov, A. A. Belyaev, S. Yu. Medvedev, and I. A. Pisarev, “Modem with fiber-optic communication line for transmission of reference signals of frequency and time,” Izmer. Tekhn., No. 8, 25–28 (2018), https://doi.org/10.32446/0368-1025it-2018-8-25-28.
S. M. Foreman, K. W. Holman, D. D. Hudson, et al., “Remote transfer of ultrastable frequency references via fiber networks,” Rev. Sci. Instrum., 78, 1–25 (2007), https://doi.org/10.1063/1.2437069.
Author information
Authors and Affiliations
Corresponding authors
Additional information
Translated from Izmeritel’naya Tekhnika, No. 12, pp. 42–47, December, 2021.
Rights and permissions
About this article
Cite this article
Kobyakov, R.S., Zheglov, A.V., Medvedev, S.Y. et al. Transmission of Signals of Promising Hydrogen Frequency and Time Standards Via Fiber-Optic Channel with Phase Instability Compensation. Meas Tech 64, 1004–1009 (2022). https://doi.org/10.1007/s11018-022-02036-1
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11018-022-02036-1