论文摘要
本文首先分析了实芯Bragg光纤的损耗和色散等一系列特性。研究发现这种光纤中不同的模式其损耗不同,并且基模的损耗最小。根据其选模特性,我们提出了一种大纤芯的实芯Bragg双模光纤放大器。相对于一般的光纤放大器,该设计增大了纤芯的面积,光场集中在芯区,基模为TE01模。因此本文所做的分析对制作高效率、大功率的光纤放大器,及用Bragg光纤实现光通信有一定的实际意义。本文的主要内容如下: 1.综述了Bragg光纤的导光原理、模式特性及其实验进展。 2.介绍了分析Bragg光纤的三种主要方法。 3.分析了Bragg光纤的损耗和色散特性。 4.利用实芯Bragg光纤的选模特性,我们提出一种大纤芯的实芯Bragg双模光纤放大器。并在理论上表明这种光纤放大器有高效率、大功率等一系列优点,同时对实现Bragg光纤通讯有一定的实际意义。
论文目录
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