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人工晶体学报 ›› 2026, Vol. 55 ›› Issue (4): 594-602.DOI: 10.16553/j.cnki.issn1000-985x.2025.0233

• 研究论文 • 上一篇    下一篇

高衍射效率声光调制器的设计与实现

王城强1,2(), 许智宏1, 邹林儿2, 卢浩3, 王帅华3(), 吴少凡3   

  1. 1.福建福晶科技股份有限公司,福州 350003
    2.南昌大学物理与材料学院,南昌 330031
    3.中国科学院福建物质结构研究所,福州 350003
  • 收稿日期:2025-11-12 出版日期:2026-04-20 发布日期:2026-05-19
  • 通信作者: 王帅华,博士,教授。E-mail:shwang@fjirsm.ac.cn
  • 作者简介:王城强(1987—),男,福建省人,工程师。E-mail:wcq@castech.com
  • 基金资助:
    闽都创新实验室产学研融合发展专项(2024CXY109);福建省工业领域区域发展项目(2024H4001);福州市联合创新项目(2025-SG-015);国家自然基金委NSAF联合基金(U2530205)

Design and Implementation of Acousto-Optic Modulator with High Diffraction Efficiency

WANG Chengqiang1,2(), XU Zhihong1, ZOU Liner2, LU Hao3, WANG Shuaihua3(), WU Shaofan3   

  1. 1.Castech. Inc,Fuzhou 350003,China
    2.School of Physics and Materials Science,Nanchang University,Nanchang 330031,China
    3.Fujian Institute of Research on the Structure of Matter,Chinese Academy of Sciences,Fuzhou 350003,China
  • Received:2025-11-12 Online:2026-04-20 Published:2026-05-19

摘要: 本文系统设计、制备和验证了一款具有高衍射效率、大孔径的声光调制器(AOM),该AOM的工作波长设计为1 064 nm,有效孔径为10 mm,工作中心频率为80 MHz,并选用低吸收石英作为声光介质,高效铌酸锂作为压电换能器。同时,本文完成优化设计及键合工艺,结合压块贴片导热、导电方案,实现了98.4%的衍射效率,该AOM同时具备优秀的光束质量和光束指向稳定性。本研究为高功率激光应用提供了关键的高性能光学器件。

关键词: 衍射效率; 声光调制器; 声光介质; 石英晶体; 压电换能器; 铌酸锂; 压块贴片导热

Abstract: This paper introduces an acousto-optic modulator (AOM) featuring high diffraction efficiency and a large aperture. The AOM is designed for operation at 1 064 nm, with an effective aperture of 10 mm and a center operating frequency of 80 MHz. Low-absorption quartz was selected as the acousto-optic medium, while high-efficiency lithium niobate served as the piezoelectric transducer. Through optimized design and bonding processes, combined with a heat-conductive and electrically conductive heat dissipation solution utilizing a pressure block and adhesive pad, a diffraction efficiency of 98.4% was achieved. This AOM simultaneously exhibits excellent outstanding beam quality and high beam pointing stability. The research provides a critical high-performance optical component for high-power laser applications.

Key words: diffraction efficiency; acousto-optic modulator; acousto-optic medium; quartz crystal; piezoelectric transducer; lithium niobate; pressure block patch thermal conduction

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