高速光通信中正交频分复用技术的研究

Study on OFDM Technology Used in High Speed Optical Communications

正交频分复用是一种优秀的调制技术,具有较高的频谱效率。介绍了正交频分复用的基本原理及其在光通信领域的应用,分析了该技术用于高速光通信的主要传输结构,并对系统涉及的关键技术进行了探讨。此外,较为详细地分析了非对称整形光正交频分复用的结构和原理,提出了光正交频分复用的应用前景。

Orthogonal frequency division multiplex（OFDM） is a superior modulation technology which has high spectrum efficiency. The basic principle of OFDM and its application in optical communications are introduced. The architectures of high speed optical communications using OFDM are analyzed, and the key technologies of the system are discussed. Finally, the structure and principle of ACO-OFDM is analyzed in detail, and the application prospect of OFDM is forcasted.