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第1.5代“三高一优”YDF特种激光光纤

俞娟 倪力 彭昆 向恒 冷晓晓 林傲祥

俞娟, 倪力, 彭昆, 等. 第1.5代“三高一优”YDF特种激光光纤[J]. 强激光与粒子束, 2024, 36: 101001. doi: 10.11884/HPLPB202436.240268
引用本文: 俞娟, 倪力, 彭昆, 等. 第1.5代“三高一优”YDF特种激光光纤[J]. 强激光与粒子束, 2024, 36: 101001. doi: 10.11884/HPLPB202436.240268
Yu Juan, Ni Li, Peng Kun, et al. The 1.5th-generation “three-high/one-excellent” YDF specialty laser fiber[J]. High Power Laser and Particle Beams, 2024, 36: 101001. doi: 10.11884/HPLPB202436.240268
Citation: Yu Juan, Ni Li, Peng Kun, et al. The 1.5th-generation “three-high/one-excellent” YDF specialty laser fiber[J]. High Power Laser and Particle Beams, 2024, 36: 101001. doi: 10.11884/HPLPB202436.240268

第1.5代“三高一优”YDF特种激光光纤

doi: 10.11884/HPLPB202436.240268
基金项目: 高功率光纤激光技术所级重大专项;高功率光纤激光技术所地联合创新中心项目
详细信息
    作者简介:

    俞 娟,54795150@qq.com

    通讯作者:

    林傲祥,10778713@qq.com

  • 中图分类号: TN244

The 1.5th-generation “three-high/one-excellent” YDF specialty laser fiber

  • 摘要:

    面向高端特种光纤激光器研制需求,突破限制光纤激光器系统功率输出和性能提升的技术瓶颈,中国工程物理研究院化工材料研究所高功率光纤激光技术所地联合创新中心团队采用模式裁剪制备工艺技术,率先推出了国内首创、特别适合976 nm-LD端面泵浦方式(976技术路线)的第1.5代YDF特种激光光纤,有效提升了光纤激光系统的模式不稳定阈值(TMI),显著优化了激光输出的光束质量。相对于目前普遍使用的第1.0代铝磷硅三元体系光纤(Yb-APS),第1.5代YDF特种激光光纤的激光功率提升约20%,光束质量M2优化约20%,集中展现了高功率、高效率、高TMI阈值、M2优化的“三高一优”的技术特点,可供工业市场高端客户选择和强激光技术领域应用。

  • 图  1  第1.5代LMA-14/250-YDF特种激光光纤包层吸收谱及折射率分布图

    Figure  1.  Clad absorption spectrum and refractive-index profile of 1.5G LMA-14/250-YDF specialty laser fiber

    图  2  第1.5代LMA-14/250-YDF特种激光光纤2 kW功率输出时的M2光束质量

    Figure  2.  Beam quality M2 of 1.5G LMA-14/250-YDF at 2 kW output power

    图  3  14/360-RCF环芯传能纤横截面图

    Figure  3.  Cross-section photograph of 14/360-RCF fiber

    表  1  第1.5代YDF特种激光光纤参数

    Table  1.   1.5G-YDF specialty laser fiber parameters

    1.5G-YDF laser fiber laser power/kW beam quality M2
    LMA-14/250-YDF 2~3 ~1.05
    LMA-20/400-YDF 3~4 ~1.10
    LMA-25/400-YDF 4~6 ~1.20
    PLMA-20/400-YDF 2~3 ~1.20
    PLMA-25/400-YDF 3~5 ~1.30
    下载: 导出CSV

    表  2  第1.5代LMA-14/250-YDF特种激光光纤参数

    Table  2.   1.5G LMA-14/250-YDF specialty laser fiber parameters

    parameter unit specification
    peak cladding absorption @915 nm dB/m 0.50±0.15
    peak cladding absorption @976 nm dB/m 1.50±0.25
    cladding attenuation@1 095 nm dB/km ≤10
    core attenuation@1 200 nm dB/km ≤10
    core attenuation@1 300 nm dB/km ≤15
    core NA 0.070±0.005
    cladding NA(5%) ≥0.46
    core/clad offset μm ≤1.0
    core diameter μm 14.3±0.5
    clad diameter (flat-to-flat) μm 250±5.0
    max. output power kW ≥2.0
    slope efficiency@976 nm % ≥78
    beam quality M2 ~1.05
    下载: 导出CSV
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出版历程
  • 收稿日期:  2024-08-15
  • 修回日期:  2024-09-18
  • 录用日期:  2024-09-18
  • 网络出版日期:  2024-09-21
  • 刊出日期:  2024-10-15

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