非等振幅高斯光束干涉研究

doi:10.14139/j.cnki.cn22-1228.2023.04.009

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摘要

利用光纤 Mach-Zehnder 干涉仪，对两束非等振幅线偏振高斯光的空间干涉条纹对比度进行了研究，得到了干涉条纹对比度与两高斯光束振幅及线偏振方向夹角之间的关系，并通过实验进行了验证。研究表明，两线偏振高斯光束振幅相差越小，条纹对比度越大，条纹越清晰;两线偏振高斯光束振动方向夹角越小，条纹对比度越大，条纹越清晰。

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	尚玉峰

关键词: 偏振光干涉条纹对比度线偏振光纤 Mach-Zehnder 干涉仪

Abstract:

The fiber Mach-Zehnder interferometer was used to produce linearly polarized Gaussian beams．A general expression for the light intensity distribution is derived for interference of two Gaussian beams and the fringe contrast is studied．The fringe contrast varies with the amplitude of Gaussian beams and the angle in between the polarization planes of two linearly polarized light． The theoretical description is validated by experiment．A formula for calculating the fringe contrast，which is shown to be in good agreement with the experiment results，is obtained． The research shows that the smaller the amplitude difference between two

Gaussian beams，or the smaller the angle between the polarization vectors of the Gaussian beams，the larger the fringe contrast．

Key words: interference with polarized light fringe contras linearly polarized light fiber Mach-Zehnder interferometer

发布日期: 2023-08-25

ZTFLH:

O 436.1

引用本文:

尚玉峰. 非等振幅高斯光束干涉研究 [J]. 大学物理实验, 2023, 36(4): 41-46.
SHANG Yufeng. Study on Interference of Gaussian Beams with Unequal Amplitudes . Physical Experiment of College, 2023, 36(4): 41-46.

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http://dawushiyan.jlict.edu.cn/CN/10.14139/j.cnki.cn22-1228.2023.04.009 或 http://dawushiyan.jlict.edu.cn/CN/Y2023/V36/I4/41

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