Laser & Optoelectronics Progress, Volume. 62, Issue 15, 1500006(2025)

Development and Prospect of High-Power Fiber Laser Chromatic Beam Combining Technology (Invited)

Wei Shi1,2,3, Haibo Zhang1,2,3, Junqing Meng1,2,3, Bing He1,2,3、*, and Xia Hou1,2,3、**
Author Affiliations
  • 1Wangzhijiang Innovation Center for Laser, Aerospace Laser Technology and System Department, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 2Shanghai Key Laboratory of All Solid-State Laser and Applied Techniques, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China
  • 3Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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    The output power of a single-beam fiber laser has a theoretical limit, and high-power fiber laser beam combining technology is the key to achieving ultra-high power while maintaining high beam quality. This paper analyzes on the limiting factors for power increasing in high-power fiber lasers, and reviews principles, technical characteristics, and current technological statuses of different beam combining schemes. Among these, chromatic beam combining using dichroic mirrors demonstrates significant engineering advantages for power increasing and beam quality preservation in broadband laser systems. The paper reviews the developmental progresses in pulsed and continuous wave fiber laser chromatic beam combining technologies in both domestically and internationally, introduces key technologies and researches in this field. Finally, future prospects for chromatic beam combining technology are discussed.

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    Wei Shi, Haibo Zhang, Junqing Meng, Bing He, Xia Hou. Development and Prospect of High-Power Fiber Laser Chromatic Beam Combining Technology (Invited)[J]. Laser & Optoelectronics Progress, 2025, 62(15): 1500006

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    Paper Information

    Category: Reviews

    Received: Apr. 28, 2025

    Accepted: Jun. 3, 2025

    Published Online: Jul. 4, 2025

    The Author Email: Bing He (bryanho@siom.ac.cn), Xia Hou (hou_xia@siom.ac.cn)

    DOI:10.3788/LOP251119

    CSTR:32186.14.LOP251119

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