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Chinese Optics Letters, Volume. 22, Issue 1, 011201(2024)

Simultaneous transmission of time-frequency and data with co-amplification over urban fiber links

Qian Cao1,2, Zhou Tong2, Lei Liu2, Jialiang Wang2、*, Kang Ying3, Fufei Pang1, and Youzhen Gui2,4、**
Author Affiliations
  • 1Key Laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200444, China
  • 2Key Laboratory for Quantum Optics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 4Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    Schematic of the urban fiber link connecting the SIOM, the SHB, and the SIMT.

    Fig. 1. Schematic of the urban fiber link connecting the SIOM, the SHB, and the SIMT.

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    General scheme of transmitting metrological signals with data in the public telecommunication network. BPF, bandpass filter; PD, photodetector; VCO, voltage-controlled oscillator; DFB, distributed feedback laser; LF, loop filter; PS, power splitter.

    Fig. 2. General scheme of transmitting metrological signals with data in the public telecommunication network. BPF, bandpass filter; PD, photodetector; VCO, voltage-controlled oscillator; DFB, distributed feedback laser; LF, loop filter; PS, power splitter.

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    Measured overlapping Allan deviation of the RF signal.

    Fig. 3. Measured overlapping Allan deviation of the RF signal.

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    Time deviation (TDEV) of the 1 PPS signal.

    Fig. 4. Time deviation (TDEV) of the 1 PPS signal.

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    Frequency instability (OADEV) of the RF signal with different input power ratios.

    Fig. 5. Frequency instability (OADEV) of the RF signal with different input power ratios.

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    Instability (OADEV) of the RF signal over a 160-km urban fiber link.

    Fig. 6. Instability (OADEV) of the RF signal over a 160-km urban fiber link.

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    Qian Cao, Zhou Tong, Lei Liu, Jialiang Wang, Kang Ying, Fufei Pang, Youzhen Gui. Simultaneous transmission of time-frequency and data with co-amplification over urban fiber links[J]. Chinese Optics Letters, 2024, 22(1): 011201

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    Paper Information

    Category: Instrumentation, Measurement, and Optical Sensing

    Received: Apr. 23, 2023

    Accepted: Aug. 31, 2023

    Posted: Aug. 31, 2023

    Published Online: Jan. 2, 2024

    The Author Email: Jialiang Wang (jialiangking@siom.ac.cn), Youzhen Gui (yzgui@siom.ac.cn)

    DOI:10.3788/COL202422.011201

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology