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Phase Information and Phase Modulated Signals in Fiber Optical Communications.

机译:光纤通信中的相位信息和相位调制信号。

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摘要

In future telecommunication networks, a wide range of pulse durations 0.1–100 ps, duty cycles from less than 1% to 99%, and different modulation formats, such as on-off-keying (OOK) and binary or differential phase-shift-keying (BPSK or DPSK) will be selected, depending on the network size and the bit rate. A transparent all-optical format conversion between OOK and DPSK is highly demanded to connect cost effective OOK based metropolitan area networks (MAN) to robust PSK-based long-haul backbone networks. Moreover, for such complex optical transmission systems, the information on the phase and amplitude of the pulses is required for predicting the effects of chromatic dispersion and various optical nonlinearities. A temporal resolution of 1 ps and a sensitivity of less than 0.1 mW are required for an ideal characterization of optical pulses used in optical communications systems.;In this thesis, we simulate the simple method of pulse characterization using sinusoidal optical phase modulation proposed by Kang and Dorrer using OptiSystem™ and MATLAB™. We also experimentally verify this method. A detailed characterization of all optical OOK to DPSK format conversion is presented by comparing simulation and experimental results for the receiver sensitivity (i.e., received power to have a BER of 10-9) on the important properties of the input signal. By knowing the optimum configuration of the single channel OOK to DPSK format conversion, we then perform an OOK to DPSK format conversion with wavelength multicasting, which can operate simultaneously at four different wavelengths.
机译:在未来的电信网络中,脉冲持续时间范围为0.1–100 ps,占空比从小于1%到99%,以及不同的调制格式,例如开关键控(OOK)和二进制或差分相移。根据网络大小和比特率,将选择键控(BPSK或DPSK)。迫切需要在OOK和DPSK之间进行透明的全光格式转换,以将具有成本效益的基于OOK的城域网(MAN)连接到强大的基于PSK的远程骨干网。而且,对于这种复杂的光传输系统,需要有关脉冲的相位和幅度的信息来预测色散和各种光学非线性的影响。为了理想地表征光通信系统中使用的光脉冲,需要1 ps的时间分辨率和小于0.1 mW的灵敏度。和Dorrer使用OptiSystem™和MATLAB™。我们还通过实验验证了该方法。通过比较接收器灵敏度(即接收功率的BER为10-9)关于输入信号重要特性的仿真和实验结果,详细介绍了所有光学OOK到DPSK格式转换的特性。通过了解单通道OOK到DPSK格式转换的最佳配置,我们然后通过波长多播执行了OOK到DPSK格式转换,它可以同时在四个不同的波长下运行。

著录项

  • 作者

    Wang, Junjia.;

  • 作者单位

    McGill University (Canada).;

  • 授予单位 McGill University (Canada).;
  • 学科 Engineering Electronics and Electrical.
  • 学位 M.Eng.
  • 年度 2012
  • 页码 110 p.
  • 总页数 110
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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