利用熔融石英作为全固态 SBS-PCM 提高高能激光器的光束质量

IF 5.4 3区材料科学 Q2 CHEMISTRY, PHYSICAL

ACS Applied Energy Materials Pub Date : 2024-09-26 DOI:10.1016/j.optlastec.2024.111850

Bin Chen , Zhenxu Bai , Yifu Chen , Yanyan Deng , Tianhao Ma , Kun Wang , Can Cui , Yaoyao Qi , Jie Ding , Bingzheng Yan , Yulei Wang , Zhiwei Lu

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引用次数: 0

摘要

光束质量对于科学和工业领域的激光应用至关重要。受激布里渊散射相位共轭镜（SBS-PCM）因其相位共轭特性而成为一种有效的光束净化方案。在这项工作中，利用熔融石英构建了一个 SBS-PCM，并将其应用于双通道放大器装置中。输入能量为 75.2 mJ，系统的最大放大倍数约为 9 倍，输出能量为 672 mJ。与高反射镜的对比分析表明，SBS-PCM 能有效减轻近场图案中硬边孔径引起的不利衍射图案，将光束质量因子从衍射极限的 1.23 倍提高到 1.085 倍。此外，与高反射镜相比，光束轮廓的确定系数 (R2) 提高了 2.18%。这些结果表明，自由空间全固态 SBS-PCM 是提高高功率激光系统光束质量的有效方法。

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Enhanced beam quality of high-energy lasers utilizing fused silica as an all-solid-state SBS-PCM

Beam quality is critical for laser applications in both scientific and industrial fields. Stimulated Brillouin scattering phase conjugate mirror (SBS-PCM) serves as an effective beam cleanup scheme due to its phase conjugation properties. In this work, a SBS-PCM using fused silica was constructed and employed in a double-pass amplifier setup. With an input energy of 75.2 mJ, the system achieved a maximum magnification of approximately 9 times, resulting in an output energy of 672 mJ. Comparative analysis with a high-reflection mirror revealed that the SBS-PCM effectively mitigated unfavorable diffraction patterns induced by the hard-edge aperture in the near-field pattern, improving the beam quality factor from 1.23 to 1.085 times the diffraction limit. Additionally, the coefficient of determination (R²) of the beam profile improved by 2.18 % compared to that of the high-reflection mirror. These results indicate that the free-space all-solid-state SBS-PCM can provide a promising approach to improving beam quality for high-power laser systems.

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来源期刊

ACS Applied Energy Materials Materials Science-Materials Chemistry

CiteScore

10.30

自引率

6.20%

发文量

1368

期刊介绍： ACS Applied Energy Materials is an interdisciplinary journal publishing original research covering all aspects of materials, engineering, chemistry, physics and biology relevant to energy conversion and storage. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials, engineering, physics, bioscience, and chemistry into important energy applications.