Chinese Optics Letters, Volume. 23, Issue 6, 060605(2025)

Active coherent beam combining of 1.55 µm pulsed fiber lasers based on intrapulse sampling

Zhen Liu1,2, Yongke Zhang1, Qihao Shen1,2、*, Xingkai He1,2, Dingfu Zhou1,2, Liangyou Duan1,2, and Siyin Liu1,2
Author Affiliations
  • 1Southwest Institute of Technical Physics, Chengdu 610041, China
  • 2Lidar and Device laboratory of Sichuan, Chengdu 610041, China
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    Figures & Tables(9)
    Experimental setup for active pulsed CBC.
    Control timing diagram of pulsed CBC.
    Sampled intensity of the two pulsed subbeams at the fixed time point.
    Results. (a) Pulse shapes of two channels and combined beam in one cycle; (b) pulse shape of combined beam in multicycle.
    Results. (a) Output powers in open loop and closed loop; (b) normalized cost functions in open loop and closed loop.
    Setup for coherent Doppler wind lidar based on pulsed CBC.
    Results of SNR. (a) Average SNR; (b) SNR difference.
    Wind velocity profiles. (a) Source A; (b) source B; (c) source C.
    • Table 1. Parameters of Three Light Sources

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      Table 1. Parameters of Three Light Sources

      SourceValue (µJ)Illustrate
      A5.4single-beam
      B10.8single-beam
      C10.8two-beam CBC
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    Zhen Liu, Yongke Zhang, Qihao Shen, Xingkai He, Dingfu Zhou, Liangyou Duan, Siyin Liu, "Active coherent beam combining of 1.55 µm pulsed fiber lasers based on intrapulse sampling," Chin. Opt. Lett. 23, 060605 (2025)

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    Paper Information

    Category: Fiber Optics and Optical Communications

    Received: Dec. 1, 2024

    Accepted: Jan. 9, 2025

    Published Online: Jun. 3, 2025

    The Author Email: Qihao Shen (shen_qihao@163.com)

    DOI:10.3788/COL202523.060605

    CSTR:32184.14.COL202523.060605

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