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    科学领域:

    • 光学和光子学 在光学和光子学.
    • 半导体激光器半导体激光器
    • 量子光学是一种量子光学.

    背景情况:

    • 激光强度噪声限制了传感和电信中的灵敏度.
    • 局部振荡器的射击噪声限制对于高精度的干扰度测量至关重要.
    • 在量子光学中,非经典的光状态测量依赖于低噪声激光器.

    研究的目的:

    • 研究和分析中红外量子级联激光器 (QCL) 和带间级联激光器 (ICL) 的强度噪声.
    • 比较三个连续波 (CW) 半导体激光器在4.5μm左右的性能.
    • 确定与先进应用的射击噪声限制操作相关的噪声特征.

    主要方法:

    • 在室温下对三个CW激光器进行全面的电光特征.
    • 详细的强度噪声分析,以识别不同的噪声行为.
    • 比较侧重于射击噪音限制性能.

    主要成果:

    • 电光学表征揭示了测试QCL和ICL的独特和共同特征.
    • 强度噪声分析确定了激光器之间的不同噪声操作.
    • 特定的噪音配置文件根据射击噪音限制的基准进行了映射.

    结论:

    • 中红外QCL和ICL表现出不同的强度噪声特征.
    • 了解这些噪声特征对于为射击噪声有限的应用选择激光器至关重要.
    • 这些发现为推进量子光学和传感方面的精度测量提供了洞察力.