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Chinese Journal of Lasers, Volume. 51, Issue 22, 2206006(2024)

Laser Underwater Frequency Transmission Based on Digital Phase Compensation

Lili Han1,2, Fei Yang1、*, Kang Cao1, Huaguo Zang1, and Weibiao Chen1
Author Affiliations
  • 1Key Laboratory of Space Laser Communication and Detection Technology, Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (7)
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    References (18)
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    Figures & Tables(7)
    Experimental setup diagram of laser underwater frequency transmission based on digital phase compensation

    Fig. 1. Experimental setup diagram of laser underwater frequency transmission based on digital phase compensation

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    Diagram of experimental scene

    Fig. 2. Diagram of experimental scene

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    Phase noise

    Fig. 3. Phase noise

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    Delay fluctuation

    Fig. 4. Delay fluctuation

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    Frequency stability

    Fig. 5. Frequency stability

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    • Table 1. Parameters of components/equipment of experimental device

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      Table 1. Parameters of components/equipment of experimental device

      Component /equipmentModelKey parameter
      Rubidium frequency standardSRS FS725Output frequency： 10 MHz
      Short-term stability： <2×10-11@1s
      LDThorlabsWavelength： 520 nm
      L520P50Output power： 50 mW
      PBSThorlabsWavelength range： 420‒680 nm
      CCM5-PBS201/MExtinction ratio： Tp∶Ts>1000∶1
      ReflectorThorlabsWavelength range： 400‒750 nm
      BB1-E02Average reflectance： >99.5%
      PDKeyang PhotonicsResponse range： 400‒1100 nm
      KY-PDM-2G-S3 dB bandwith@50 Ω： DC-2 GHz
      Low noise amplifierMini-CircuitsBandwidth： 50‒3000 MHz
      ZX60-33LNR-S+Gain： 11.4 dB‒24.7 dB
      Phase noise and Allan deviation test setMicrosemi 5125AInput frequency range： 1‒400 MHz

    • Table 2. Research results of underwater frequency transmission

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      Table 2. Research results of underwater frequency transmission

      ReferenceTechnical systemDescription

      Compensation

      bandwidth

      Frequency

      stability

      Hou， et al.［4］Electronic phase compensation100 MHz frequency signal over underwater 5 m5 Hz

      5×10-13@1 s and

      7×10-16@1000 s

      Hou［5］Optical phase compensation500 MHz frequency signal over underwater 5 m10 Hz

      2.8×10-13@1 s and

      2.7×10-16@1000 s

      Ren， et al.［18］Terminal phase compensation100 MHz frequency signal over underwater 3 m‒

      5.9×10-13@1 s and

      5.3×10-15@1000 s

      This paperDigital phase compensation400 MHz frequency signal over underwater 8 m1 kHz

      7.9×10-14@1 s and

      2.1×10-16@1000 s

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    Lili Han, Fei Yang, Kang Cao, Huaguo Zang, Weibiao Chen. Laser Underwater Frequency Transmission Based on Digital Phase Compensation[J]. Chinese Journal of Lasers, 2024, 51(22): 2206006

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    Paper Information

    Category: Fiber optics and optical communication

    Received: Feb. 26, 2024

    Accepted: Apr. 19, 2024

    Published Online: Nov. 15, 2024

    The Author Email: Yang Fei (fyang@siom.ac.cn)

    DOI:10.3788/CJL240621

    CSTR:32183.14.CJL240621

    Topics

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