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文档编号:DZXX394 文档字数:16066,页数:41 摘要 光纤通信自问世以来，给整个通信领域带来了一场革命，它以其自身的特点使高速率、大容量的通信成为可能。目前它已成为一种不可替代的、最主要的信息传输技术。在这一背景下，研究与分析光纤的结构和传输特性对光纤的进一步发展与应用具有了重要的意义。本文首先总结了光纤技术的发展概况和未来的发展趋势以及它的特点、优势所在；接着引入本毕业设计的关键理论——波动光学理论，以及仿真工具——MATLAB软件；然后阐述了光纤材料的结构和传输原理。并着重分析和描述了阶跃型光纤的传输特性，运用波动光学理论推导传输特性方程，求解出其标量解，并阐述了模式的定义和分类；最后运用MTLAB绘制出阶跃型光纤几种低阶模式在光纤截面上的强度分布图。
The advent of optical fiber communications brought a revolution for the entire field of communication. With it’s own characteristics so that high-speed, large-capacity communication is possible. Currently, it has become an irreplaceable and the most important technology for information transmission. In this context, research and analysis of the structure and optical fiber transmission characteristics has an important significance on further development and application of the optical fiber. This paper firstly summarizes the development and future development trends of the technology of optical fiber and its characteristics, advantages. Followed by the key theory of the diploma project ——fluctuations in optical theory, and the simulation software –MATLAB. Then expounded the structure and transmission principle of the fiber material, and focus on the analysis and description of the characteristics of the transmission of step-fiber .Using the wave optical theory, derives the characteristic equation of the optical transmission in theory. Solving its scalar solution, and expatiates the definition and classification of those modes. Finally use MATLAB to map the diagram of the electric field’s strength in several modes of Step-scalar mode fiber.
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| Tags：运用 MATLAB 光纤 传输 特性 仿真 | 2011-10-24 11:01:09【返回顶部】 |
