Robust fiber-based frequency synchronization system immune to strong temperature fluctuation

Xi Zhu; Bo Wang; Yichen Guo; Yibo Yuan; Romeo Gamatham; Bruce Wallace; Keith Grainge; Lijun Wang

doi:10.3788/COL201816.010605

Journals >Chinese Optics Letters >Volume 16 >Issue 1 >Page 010605 > Article

Chinese Optics Letters
Vol. 16, Issue 1, 010605 (2018)

Robust fiber-based frequency synchronization system immune to strong temperature fluctuation | On the Cover

Xi Zhu^1、2, Bo Wang^1、*, Yichen Guo¹, Yibo Yuan², Romeo Gamatham³, Bruce Wallace³, Keith Grainge⁴, and Lijun Wang^1、2

Author Affiliations

¹State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing 100084, China

²Department of Physics, Tsinghua University, Beijing 100084, China

³SKA South Africa, Blend on Baker, Rosebank 2196, Johannesburg, South Africa

⁴Jodrell Bank Centre for Astrophysics, Alan Turing Building, School of Physics & Astronomy, The University of Manchester, Oxford Road, Manchester M13 9PL, UK

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DOI: 10.3788/COL201816.010605 Cite this Article Set citation alerts

Xi Zhu, Bo Wang, Yichen Guo, Yibo Yuan, Romeo Gamatham, Bruce Wallace, Keith Grainge, Lijun Wang. Robust fiber-based frequency synchronization system immune to strong temperature fluctuation[J]. Chinese Optics Letters, 2018, 16(1): 010605 Copy Citation Text

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Abstract

In order to make the fiber-based frequency synchronization system suitable for the use of large-scale scientific and engineering projects in which the ambient temperature of the fiber links change dramatically, we design a non-harmonic frequency dissemination system immune to strong temperature fluctuation. After the lab tests, in which the ambient temperature of the fiber fluctuates 40°C/day and 20°C/h, respectively, the relative frequency stabilities of this system reaches

4.0 \times 10^{14} / s

and

3.0 \times 10^{16} / 10^{4} s

. It is demonstrated that the proposed non-harmonic scheme shows a strong robustness to complicated working environment with strong temperature fluctuation.

V_{0} = \cos (ω_{0} t + ϕ_{0}) .

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