欢迎访问《人工晶体学报》官方网站,今天是

人工晶体学报 ›› 2026, Vol. 55 ›› Issue (7): 1044-1059.DOI: 10.16553/j.cnki.issn1000-985x.2026.0030

• 综合评述 • 上一篇    下一篇

基于单晶光纤的单频连续波激光器研究进展

卫毅笑1,2(), 苏静1,3, 卢华东1,3(), 彭堃墀1,3   

  1. 1.山西大学光电研究所光量子技术与器件全国重点实验室,太原 030006
    2.山西电子科技学院微电子学院,临汾 041000
    3.山西大学极端光学协同创新中心,太原 030006
  • 收稿日期:2026-02-27 出版日期:2026-07-20 发布日期:2026-08-04
  • 通信作者: 卢华东,博士,教授。E-mail:luhuadong@sxu.edu.cn
  • 作者简介:卫毅笑,博士,山西电子科技学院讲师。主要从事固体激光技术研究,先后在Opt ExpressOpt Lett等国内外重要学术刊物上发表论文7篇,获得美国及中国授权发明专利2项。E-mail:291015909@qq.com
    卢华东,山西大学教授、博士生导师。山西省光学学会常务理事,山西省十大科技创新人物,山西省科教兴晋突出贡献专家,山西省优秀青年学术带头人,山西省“三晋英才”支持计划青年优秀人才。长期致力于激光技术、光量子器件等方面的实验与理论研究及高技术成果转化工作。主持和承担了包括国家重点研发计划课题、国家自然科学基金、中央引导地方科技发展资金项目、山西省科技重大专项项目、山西省杰青项目等在内的30余项国家级和省部级研究项目。先后在国内外重要学术刊物上发表论文100多篇。获得美国及中国授权发明专利40多项。先后荣获中国发明奖优秀奖、首届山西省创新争先奖、山西省技术发明奖特等奖、山西省技术发明奖一等奖、山西省专利奖等。
  • 基金资助:
    国家自然科学基金(62575163);国家重点研发计划(2022YFC2204003);山西电子科技学院科研启动经费(2025KJ011)

Research Progress of Single-Frequency Continuous-Wave Laser Based on Single-Crystal Fiber

WEI Yixiao1,2(), SU Jing1,3, LU Huadong1,3(), PENG Kunchi1,3   

  1. 1.State Key Laboratory of Quantum Optics Technologies and Devices,Institute of Opto-Electronics,Shanxi University,Taiyuan 030006,China
    2.School of Microelectronics,Shanxi University of Electronic Science and Technology,Linfen 041000,China
    3.Collaborative Innovation Center of Extreme Optics,Shanxi University,Taiyuan 030006,China
  • Received:2026-02-27 Online:2026-07-20 Published:2026-08-04

摘要: 全固态单频连续波激光器因具有线宽窄、光束质量好、功率稳定性高和噪声低等优点,是量子光学和精密测量等基础研究和应用领域的优质光源。随着科学技术的飞速发展和应用需求的不断提升,在保障激光器整体性能的基础上提高激光器的输出功率变得尤为重要。然而,光纤激光器在高功率输出时,非线性效应会越来越严重,棒状晶体激光器在高泵浦功率条件下,热效应会显著提升。这两类效应的存在直接限制了激光器在诸多领域的应用。针对光纤和棒状晶体增益介质存在的不足,作为两者结合体的新型激光介质单晶光纤,凭借优异的物理化学性能、良好的热管理特性、泵浦波导效应和高的受激布里渊散射阈值已经成为固体激光器领域的研究热点。本文结合课题组的研究工作,主要介绍了基于Nd∶YAG单晶光纤的单频连续波激光器的研究进展,并简要分析了其发展趋势。

关键词: 激光器; 单晶光纤; 单频; 连续波; 单晶光纤放大器; 全固态激光器

Abstract: All-solid-state single-frequency continuous-wave lasers are high-quality light sources for fundamental research and application fields, including quantum optics, high-precision measurement, and so on owing to their intrinsic advantages of narrow linewidth, excellent beam quality, high power stability and low noise. With the rapid development of science and technology and the increasing demands of applications, it has become particularly important to scale up the output power of lasers while maintaining their overall performance.However, nonlinear effects become more and more severe with the increase of the output power for fiber lasers, and thermal effects are significantly enhanced under high pump power for rod crystal lasers. To address the limitations of fiber and rod crystal gain media, single-crystal fiber, a novel laser medium that combines the advantages of both, has become a more and more popular research hotspot in the field of all-solid-state lasers due to its excellent physicochemical properties, good thermal management characteristic, pump waveguide effect and high stimulated-Brillouin-scattering threshold. As is well known, scaling up the output power of the single-frequency continuous-wave laser is mainly implemented by means of a laser amplifier or a single resonator. This paper mainly focuses on the research progress of single-frequency continuous-wave lasers based on Nd∶YAG single-crystal fibers. A high-power linearly polarized single-frequency continuous-wave 1 064 nm laser based on the single-crystal fiber master oscillator power amplifier is presented, in which a 140 W low-noise single-frequency continuous-wave laser and an Nd∶YAG single-crystal fiber act as the seed laser and the laser medium of the master oscillator power amplifier, respectively. In order to obtain a high conversion efficiency, the mode-matching efficiency between the pump laser propagated with waveguide form and the freely propagated seed laser is optimized by considering the influence of the degradations of the polarization and the beam quality. When the incident powers of the pump and seed lasers are 262.6 and 126.3 W, respectively, the output power of the linearly polarized single-frequency laser reaches up-to 208 W. To the best of our knowledge, this is the highest output power based on an Nd∶YAG single-crystal fiber master oscillator power amplifier. In addition, a hybrid single-frequency continuous-wave 1 064 nm laser is presented, where both two Nd∶YVO4 bulk crystals and two Nd∶YAG single-crystal fibers are employed as gain media. By combining the advantages of the good thermal management characteristic of the Nd∶YAG single-crystal fiber with the natural birefringence effect of the Nd∶YVO4 bulk crystal, a stable single-frequency laser with high output power is achieved. Based on this scheme, a 120 W hybrid single-frequency continuous-wave 1 064 nm laser is obtained by employing Nd∶YAG single-crystal fibers as gain media in a single resonator.The presented laser technologies provide a good reference for achieving high-power single-frequency continuous-wave laser output at different wavelengths based on single-crystal fibers, which will strongly promote the development of laser technology and related fundamental research and application fields.

Key words: laser; single-crystal fiber; single-frequency; continuous-wave; single-crystal fiber amplifier; all-solid-state laser

中图分类号: