Laser & Optoelectronics Progress, Volume. 59, Issue 15, 1516021(2022)

Research Progress on Beam Homogenization and Shaping Technology Using All-Fiber Structure

Xu Zhang, Yingbin Xing, Yingbo Chu, Gui Chen, Nengli Dai, Haiqing Li, Jinggang Peng, and Jinyan Li*
Author Affiliations
  • Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, Hubei , China
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    Fiber lasers are widely used in industrial processing, military defense, and other fields. The energy distribution of the laser output in fiber lasers is Gaussian-like distribution. This nonuniform energy distribution within the spot diameter affects the consistency of the processing effect at different positions along the spot diameter when applied to lithography, welding, etc. Therefore, homogenizing and shaping Gaussian-like beams in practical applications is greatly significant. Compared with the beam shaping method of the traditional spatial structure, using the all-fiber structure in beam shaping provides a simple structure and good compactness for the fiber lasers. By summarizing the research progress of various scholars over the years, the homogenization and shaping technology of the all-fiber structure is classified into two categories: increasing the components of the high-order mode in the output laser and directly changing the energy distribution of the fundamental mode. In this paper, we present the research status of all-fiber structure beam homogenization and shaping technology and discuss prospects of future development in all-fiber structure beam shaping technology.

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    Xu Zhang, Yingbin Xing, Yingbo Chu, Gui Chen, Nengli Dai, Haiqing Li, Jinggang Peng, Jinyan Li. Research Progress on Beam Homogenization and Shaping Technology Using All-Fiber Structure[J]. Laser & Optoelectronics Progress, 2022, 59(15): 1516021

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    Paper Information

    Category: Materials

    Received: Apr. 28, 2022

    Accepted: Jun. 20, 2022

    Published Online: Jul. 27, 2022

    The Author Email: Li Jinyan (ljy@hust.edu.cn)

    DOI:10.3788/LOP202259.1516021

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