Yan Qi, Yingjie Zhu, Jing Zhang, Yanwei Wang, Mi Zhou, Chenxi Sun, Boxia Yan, Wei Han, Yu Wang. Research Progress of Laser Beam Shaping Technology[J]. Laser & Optoelectronics Progress, 2024, 61(5): 0500005
- Laser & Optoelectronics Progress
- Vol. 61, Issue 5, 0500005 (2024)
Fig. 1. Schematic diagram of aperture method
![Photographs of aperture stops and near-fields with beam-intensity profiles[15]. (a) Stop with a sharp edge; (b) shapes of the serrations are rectangular; (c) shapes of the serrations are triangular; (d) shapes of the serrations are super-Gaussian profiled](/richHtml/lop/2024/61/5/0500005/img_02.jpg)
Fig. 2. Photographs of aperture stops and near-fields with beam-intensity profiles[15]. (a) Stop with a sharp edge; (b) shapes of the serrations are rectangular; (c) shapes of the serrations are triangular; (d) shapes of the serrations are super-Gaussian profiled
![Laser beam shaping based on LC-SLM. (a) Reflective LC-SLM shaping system[25]; (b) spectral shapes of Gaussian, triangular, flat, and inverted triangles[20]; (c) transmission LC-SLM shaping system[22]; (d) shaping system and results of double layer LC-SLM[24]](/Images/icon/loading.gif){kind=icon}
Fig. 3. Laser beam shaping based on LC-SLM. (a) Reflective LC-SLM shaping system[25]; (b) spectral shapes of Gaussian, triangular, flat, and inverted triangles[20]; (c) transmission LC-SLM shaping system[22]; (d) shaping system and results of double layer LC-SLM[24]
Fig. 4. Field mapper concept map[27]
Fig. 5. Phase output plane intensity distribution. (a) Improved G-S algorithm; (b) traditional G-S algorithm [27]; (c) machinelearning algorithms [40]
Fig. 6. Classification of aspheric lens groups. (a) Two types of aspherical lens groups [52];(b) flat top distribution of output light at different propagation distances (D is propagation distance) [54]; (c) meridian section curve of Kepler type aspherical mirror [55]
Fig. 7. Birefringent element group shaping. (a) Radial birefringent element (RBE) laser system［60］; (b) 2D and 3D views of the output near-field spot at maximum energy [60]; (c) birefringent laser pulse shaper with N crystals[61]
Fig. 8. Structure diagram of multi aperture beam focusing system
Fig. 9. Micromirror array shaping system. (a) System diagram and shaped light field distribution of single and double micromirror arrays[70]; (b) DMD beam shaping system[75]; (c) one-dimensional, two-dimensional, and three-dimensional distribution of DMD shaping spot[75]
Fig. 10. RPP beam shaping application[79]. (a) PHELIX laser system based on RPP; (b) far-field beam intensity distribution (left image with RPP, right image without RPP)
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