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High-precision narrow laser linewidth measurement based on coherent envelope demodulation

机译：基于相干信封解调的高精度窄激光线宽测量

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摘要

This paper presents a novel method for high-precision narrow laser linewidth measurement through demodulating the coherent envelope of the short delayed self-heterodyne interferometry spectrum. Our method based on short delayed self-heterodyne interferometry can ignore the influence of Gaussian broadening induced by 1/f frequency noise and eventually obtain the strict Lorentzian spectrum and the corresponding linewidth. The feasibility of the method has been verified via theoretical analysis, simulation, and experimentation. Compared to the conventional linewidth measurement method, the linewidth measured by our method is more accurate, especially in the field of narrow linewidth measurement.
机译：本文通过解调短延迟自差干涉谱的相干封闭，提出了一种用于高精度窄激光线宽测量的新方法。我们基于短延迟自差干涉测量法的方法可以忽略1 / F频率噪声引起的高斯扩大的影响，并最终获得严格的Lorentzian谱和相应的线宽。通过理论分析，模拟和实验验证了该方法的可行性。与传统的线宽测量方法相比，我们的方法测量的线宽更准确，尤其是窄线宽测量领域。

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  • 来源
    《Optical fiber technology》 |2019年第7期|200-205|共6页
  • 作者

    He Yixiong; Hu Shuling; Liang Shuang; Li Yiyue;

  • 作者单位

    Beihang Univ Sch Instrumentat & Optoelect Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Instrumentat & Optoelect Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Instrumentat & Optoelect Engn Beijing 100191 Peoples R China;

    Beihang Univ Sch Instrumentat & Optoelect Engn Beijing 100191 Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Linewidth measurement; Self-heterodyne interferometry; Demodulation;

    机译：线宽测量;自外差导干部;解调;

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