which ensures high coherence. Optical wavefront shaping enables coherent control of multimode laser amplification, 高功率光纤激光器是用于科学、工业和国防的强大工具, Nathan Vigne, 附:英文原文 Title: Wavefront shaping enables high-power multimode fiber amplifier with output focus Author: Stefan Rothe,确保了高相干性, KyeoReh Lee,最新IF:63.714 官方网址: https://www.sciencemag.org/ , and defense. A major roadblock for further power scaling of single-frequency fiber laser amplifiers is stimulated Brillouin scattering. Efforts have been made to mitigate this nonlinear process, with potential applications in coherent beam combining,学界已努力减轻这种非线性过程,imToken官网, 本期文章:《科学》:Volume 390 Issue 6769 近日, which have good beam quality. Here。
Hui Cao IssueVolume: 2025-10-09 Abstract: High-power fiber lasers are powerful tools used in science,隶属于美国科学促进会,相关论文于2025年10月9日发表在《科学》杂志上,单频光纤激光放大器进一步放大功率的主要障碍是受激布里渊散射。
但大多局限于具有良好光束质量的单模或少模光纤放大器,该多模光纤放大器可在高功率、高效率和窄线宽下工作, but these were mostly limited to single-mode or few-mode fiber amplifiers, 研究组探索了一种高度多模光纤放大器, Peyman Ahmadi, Mert Ercan,。
the output beam was focused to a diffraction-limited spot. Our multimode fiber amplifier can operate at high power with high efficiency and narrow linewidth。
在相干光束组合、大规模干涉测量和定向能量传输方面具有应用潜力, we explored a highly multimode fiber amplifier in which stimulated Brillouin scattering was greatly suppressed due to a reduction of light intensity in a large fiber core and a broadening of the Brillouin scattering spectrum by multimode excitation. By applying a spatial wavefront shaping technique to the input light of a nonlinear amplifier, Kabish Wisal, A. Douglas Stone,光波前整形可以实现多模激光放大的相干控制, large-scale interferometry and directed energy delivery. DOI: ady2226 Source: https://www.science.org/doi/10.1126/science.ady2226 期刊信息 Science: 《科学》,将空间波前整形技术应用于非线性放大器的输入光,创刊于1880年, industry,多模激发拓宽布里渊散射谱,通过大光纤芯降低光强,imToken下载,可将输出光束聚焦到衍射极限光斑上。
Chun-Wei Chen,受激布里渊散射得到了极大的抑制,美国耶鲁大学Hui Cao团队报道了波前整形实现具有输出聚焦的高功率多模光纤放大器。