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  • Received: Sep. 29, 2019

    Accepted: Nov. 7, 2019

    Posted: Feb. 3, 2020

    Published Online: Feb. 12, 2020

    The Author Email: Guiling Wu (wuguiling@sjtu.edu.cn)

    DOI: 10.3788/COL202018.020603

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    Pingyang Shi, Guiling Wu, Liang Hu, Qi Li, Jianping Chen. Stable RF transfer over a fiber-optic ring with DSBCS modulation and a DSB RF signal[J]. Chinese Optics Letters, 2020, 18(2): 020603

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Chinese Optics Letters, Vol. 18, Issue 2, 020603 (2020)

Stable RF transfer over a fiber-optic ring with DSBCS modulation and a DSB RF signal

Pingyang Shi1, Guiling Wu1,2,*, Liang Hu1, Qi Li1, and Jianping Chen1,2

Author Affiliations

  • 1Shanghai Institute for Advanced Communication and Data Science, State Key Laboratory of Advanced Optical Communication Systems and Networks, Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
  • 2Shanghai Key Laboratory of Navigation and Location-Based Services, Shanghai 200240, China

Abstract

We propose a radio frequency (RF) transfer technique with passive phase noise compensation over a fiber-optic ring. By adopting different frequencies and same wavelength transmission and double sideband (DSB) with carrier suppression (DSBCS) modulation, the impact of backscattering can be effectively suppressed. A stable RF signal can be obtained via frequency mixing at an arbitrary access site along the fiber-optic ring. As the two directional transmissions adopt the same fiber and same wavelength from the same laser, the bidirectional propagation symmetry can be maximally guaranteed. We experimentally demonstrate 2 GHz RF signal transfer along a 100 km standard single-mode fiber-optic ring.

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