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可调 300 W 单频 2 微米光纤放大器

Reagan R D Weeks, Ryan A Lane, Brian M Anderson

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    |December 24, 2025
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    概括

    这项研究介绍了一种可调节的,全纤维的酸辅助纤维放大器. 它在广泛的波长范围内提供高功率,单频输出,表现出高效的性能,高达2085nm.

    科学领域:

    • 激光物理 激光物理
    • 光学工程是指光学工程.

    背景情况:

    • 高功率光纤放大器对于各种科学和工业应用至关重要.
    • (Tm) 化纤维放大器在2微米波长区域内具有运行潜力.

    研究的目的:

    • 开发和描述一个高功率,可调节,全纤维的基纤维放大器.
    • 为了将Tm-doped放大器的操作带宽扩展到更长的波长.

    主要方法:

    • 使用了多级放大器设计,包括Tm-doped和Tm/Ho-doped增益纤维.
    • 使用较长的Tm光纤段来增强带宽扩展.
    • 特征输出功率,光谱特性,放大自发发射 (ASE) 含量和光束质量 (M2).

    主要成果:

    • 从1992-2065nm实现了可调节输出,具有300-350W的单频 (<100kHz线宽) 功率.
    • 在180W以上,直至2085nm,在没有光谱过器的情况下,ASE低于10%.
    • 在整个运营带宽中观察到的效率约为55%.
    • 在高功率下报告了1.39的平均M2值,估计了脚台灯和更高阶模式内容.

    结论:

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  • 开发的基于Tm的全纤维放大器设计成功地将高功率运行扩展到更长的波长 (>2050 nm).
  • 放大器表现出高效和可调节的输出,适用于需要高功率,在2微米范围内的窄线宽源的应用.
  • 在2085nm以后,ASE管理变得至关重要,这表明了这种特定配置的极限.