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Acta Optica Sinica, Volume. 45, Issue 4, 0436001(2025)

Efficient Coherent Polarization Beam Combining of 16-Channel Femtosecond Fiber Lasers

Jiayi Zhang1, Bo Ren1、*, Can Li1、**, Hongxiang Chang2, Zhenqiang Tang1, Tao Wang1, Kun Guo1, Gehui Xie3, Jinyong Leng1,4,5, Lei Si1,4,5, Wenxue Li3, and Pu Zhou1、***
Author Affiliations
  • 1College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410073, Hunan , China
  • 2College of Physics & Optoelectronic Engineering, Jinan University, Guangzhou 510632, Guangdong , China
  • 3State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai 200062, China
  • 4Nanhu Laser Laboratory, National University of Defense Technology, Changsha 410073, Hunan , China
  • 5Hunan Provincial Key Laboratory of High Energy Laser Technology, National University of Defense Technology, Changsha 410073, Hunan , China
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    Experimental setup for coherent polarization beam combining of 16-channel ultrafast fiber lasers

    Fig. 1. Experimental setup for coherent polarization beam combining of 16-channel ultrafast fiber lasers

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    Results of phase locking. (a) Combined beam profile in closed loop; (b)‒(d) combined beam profiles in open loop states; (e) normalized temporal intensity fluctuations before and after phase locking

    Fig. 2. Results of phase locking. (a) Combined beam profile in closed loop; (b)‒(d) combined beam profiles in open loop states; (e) normalized temporal intensity fluctuations before and after phase locking

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    Properties of combined laser pulse. (a) Spectrum; (b) autocorrelation trace of compressed pulse

    Fig. 3. Properties of combined laser pulse. (a) Spectrum; (b) autocorrelation trace of compressed pulse

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    Jiayi Zhang, Bo Ren, Can Li, Hongxiang Chang, Zhenqiang Tang, Tao Wang, Kun Guo, Gehui Xie, Jinyong Leng, Lei Si, Wenxue Li, Pu Zhou. Efficient Coherent Polarization Beam Combining of 16-Channel Femtosecond Fiber Lasers[J]. Acta Optica Sinica, 2025, 45(4): 0436001

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    Paper Information

    Category: Letters

    Received: Oct. 20, 2024

    Accepted: Dec. 10, 2024

    Published Online: Feb. 19, 2025

    The Author Email: Ren Bo (rbone725@163.com), Li Can (lc0616@163.com), Zhou Pu (zhoupu203@163.com)

    DOI:10.3788/AOS241654

    CSTR:32393.14.AOS241654

    Topics

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