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Polarization mode dispersion in optical fiber transmission systems.

机译：光纤传输系统中的偏振模色散。

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摘要

The birefringence of optical fibers causes pulse broadening in fiber-optic communication systems. This phenomenon is known as polarization mode dispersion (PMD). PMD is one of the most important limiting factors for high capacity fiber-optic systems.; A number of aspects of PMD are examined in this thesis. In Chapter 2 an expression is derived for the probability density function of the pulse broadening due to first-order PMD. This result is used to obtain an expression for the system limitation due to PMD.; The birefringence of optical fibers is commonly simulated with the waveplate model. In Chapter 3 two standard versions of the waveplate model are introduced. In addition, a novel waveplate model is proposed. The characteristics of the three versions of the waveplate model are examined to confirm their suitability for use in subsequent chapters of the thesis.; Simulations with the waveplate model are performed in Chapter 4 for three purposes: (1) to determine the impact of chromatic dispersion on the system limitation due to PMD, (2) to examine the effectiveness of three different PMD compensation techniques in the presence of chromatic dispersion, and (3) to examine the interaction of second-order chromatic dispersion with PMD.; The simulations in Chapter 4 reveal that it is possible with one compensation technique to have output pulses that are narrower than the input pulses. In Chapter 5, this anomalous pulse narrowing is demonstrated analytically for a simple model of PMD and through experiment. It is also shown that this pulse narrowing can be explained as an interference phenomenon.; Chapter 6 presents measurements of PMD and state of polarization on installed optical fibers. The PMD coefficients of 122 fibers are presented and the results are analyzed in terms of the age of the fibers and the type of cabling. Measurements of the time evolution of PMD and state of polarization are presented for fibers installed in both buried and aerial cables. The uncertainty in the measurement of PMD and the PMD of concatenated fiber links are examined through measurements on installed fibers and through experiment.
机译：光纤的双折射会在光纤通信系统中引起脉冲展宽。这种现象称为偏振模色散（PMD）。 PMD是高容量光纤系统最重要的限制因素之一。本文研究了PMD的许多方面。在第二章中，导出了由于一阶PMD引起的脉冲展宽的概率密度函数的表达式。该结果用于获得由于PMD而引起的系统限制的表达式。通常用波片模型来模拟光纤的双折射。在第3章中，介绍了两个标准版本的波片模型。此外，提出了一种新颖的波片模型。检查了三个版本的波片模型的特性，以确认它们是否适合在本文的后续章节中使用。在第4章中使用波片模型进行仿真，其目的有三：（1）确定色散对PMD引起的系统限制的影响，（2）在存在色差的情况下检查三种不同PMD补偿技术的有效性色散;（3）检查二阶色散与PMD的相互作用;第4章中的仿真表明，使用一种补偿技术可以使输出脉冲的宽度小于输入脉冲的宽度。在第5章中，通过简单的实验分析和实验证明了这种异常脉冲变窄的现象。还表明，该脉冲变窄可以解释为干扰现象。第6章介绍了已安装的光纤上PMD和偏振状态的测量。介绍了122根光纤的PMD系数，并根据光纤的寿命和电缆类型分析了结果。提出了埋入式和架空电缆中安装的光纤的PMD时间演变和偏振态的测量结果。通过在已安装的光纤上进行测量并通过实验来检查PMD和级联光纤链路的PMD测量中的不确定性。

著录项

  • 作者

    Cameron, John Charles.;

  • 作者单位

    The University of New Brunswick (Canada).;

  • 授予单位 The University of New Brunswick (Canada).;
  • 学科 Physics Electricity and Magnetism.; Engineering Electronics and Electrical.
  • 学位 Ph.D.
  • 年度 2000
  • 页码 p.5781
  • 总页数 287
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 电磁学、电动力学;
  • 关键词

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