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干扰边缘缓解在短延迟自异质激光相位噪声测量中的干扰边缘缓解

Jasper Riebesehl, David C Nak, Darko Zibar

|November 11, 2025

概括

本研究引入了一种数字信号处理方法,以准确测量激光相位噪声. 它纠正低噪声激光表征中的干扰扭曲,以提高准确性.

科学领域:

光学和光子学在光学和光子学.
激光物理激光物理
信号处理信号处理

背景情况:

自异极技术是激光相位噪声表征的标准.
在低噪音激光分析中,短暂的光学延迟会导致干扰器件,扭曲测量结果.

研究的目的:

开发一种可靠的方法来准确估计相位噪声功率光谱密度 (PN-PSD).
为了弥补低噪声激光相位噪声测量中的干扰扭曲.

主要方法:

实现了一个数据驱动的数字信号处理程序.
集成基于内核的回归 (内核回归) 进入PN-PSD等分框架.
利用自动超参数优化用于激光线形的自适应建模.

主要成果:

成功地从相位噪声光谱中移除了干扰工件.
对低噪音激光器实现了准确的PN-PSD估计.
通过模拟和实验验证证明了有效性.

结论:

开发的方法提供了准确而强大的相位噪声表征.
它适用于广泛的激光器,其硬件需求最小.
这种方法提高了低噪声激光器的常规相位噪声测量.

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