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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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可调的子运行在特拉赫兹量子级联环激光器中.

Michael Jaidl, Dominik Theiner, Florian Pilat

    Optics express
    |November 11, 2025
    PubMed
    概括

    研究人员在量子级联激光器上使用无线电频率调制创建了一个可调的太赫兹频率. 这种紧而高效的方法为光谱和通信提供了精确的控制.

    科学领域:

    • 太赫兹 (THz) 是科学和技术的频率.
    • 量子级联激光器 (QCL) 是一种量子级联激光器.
    • 光电学是指光电子产品.

    背景情况:

    • 太赫兹频率对于高分辨率光谱和传感非常重要.
    • 产生和控制可调节间距的THz子仍然是一个挑战.

    研究的目的:

    • 展示一种多功能和紧的方法来生成和控制THz频.
    • 探索使用无线电频率 (RF) 调制在环形量子级联激光器 (QCL) 中用于THz generation.

    主要方法:

    • 将波射频调制应用于其激光值以上的环形QCL.
    • 分析生成的相连贯侧带及其光谱特性.
    • 测量节拍音符的线宽和相形状.

    主要成果:

    • 实现可调节的THz频率间距从1.5-14.5 GHz,独立于腔模式.
    • 观察到狭窄的节拍音符,线宽低至3.5Hz和线性相位形状.
    • 通过射频调制,证明了THz输出功率和激光效率的提高.

    结论:

    • 射频调制的QCL为生成可定制的THz频提供了灵活和高效的方法.

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  • 这种技术显示出在光谱,传感和通信系统中的应用潜力很大.
  • 该方法可以精确控制光谱网和电力分配.