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

机译：基于相干包络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：本文通过解调短时延自外差干涉光谱的相干包络，提出了一种高精度的窄激光线宽测量新方法。我们基于短时延自外差干涉法的方法可以忽略1 / f频率噪声引起的高斯展宽的影响，并最终获得严格的洛伦兹谱和相应的线宽。通过理论分析，仿真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，通过我们的方法测量的线宽更加准确，尤其是在窄线宽测量领域。

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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;自外差干涉法;解调;

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