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相关概念视频

Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

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The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
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Generation and Coherent Control of Pulsed Quantum Frequency Combs
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一瓦特单频689nm VECSEL用于量子技术

Charlotte A Hodges, Paulo Hisao Moriya, Jennifer E Hastie

    Optics express
    |February 20, 2026
    PubMed
    概括

    高功率,低噪音的激光器对于量子技术至关重要. 这项研究展示了一种基于AlGaInP的新型垂直外腔表面发射激光器 (VECSEL),在689nm实现1W单频输出,用于冷原子应用.

    科学领域:

    • 激光物理 激光物理
    • 量子技术 量子技术是一种量子技术.
    • 原子物理 原子物理

    背景情况:

    • 基于AlGaInP的垂直外腔表面发射激光器 (VECSEL) 提供高亮度和低噪声.
    • 冷 (Sr) 原子量子技术需要高功率,低噪音的689nm光源.

    研究的目的:

    • 为了证明量子应用的AlGaInP-VECSEL的横向功率缩放.
    • 为了在冷却过渡频率上实现高功率,单频输出.

    主要方法:

    • 一个AlGaInP-VECSEL的侧向功率缩放.
    • 用于单频操作的内腔过器.
    • 将VECSEL锁定在一个Fabry-Perot参考腔中.

    主要成果:

    • 实现了2W多模式和1W单频输出功率在689nm左右.
    • 与之前的报告相比,多模输出功率的增长>350%.
    • 观察到的超低相对强度噪声 (RIN) <-152.9 dBc/Hz和狭窄的线宽 (7.26 kHz锁定).

    结论:

    • 开发的AlGaInP-VECSEL适用于使用冷Sr原子的高功率量子应用.

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  • 激光器的性能,包括功率,稳定性和噪声,符合量子技术的严格要求.
  • 这项工作推动了对原子物理学的紧,强大的激光源的开发.