基于MIMO构架的光OFDM系统研究

Research on Optical OFDM System Based on MIMO Structure

摘要:

文章在分析无线正交频分复用(OFDM)技术和单模光纤偏振特性的基础上,研究了一种基于多输入多输出(MIMO)框架的光OFDM系统并搭建了实验平台。系统将两路12Gb/sOFDM信号通过偏振复用为24Gb/s信号,实现了两路信号的解调输出。实验证明,该系统可扩展光纤信道中的频谱划分,增大信道容量,具有较强的对抗光纤色散的能力。

Abstract:

By analyzing the wireless OFDM technology and the polarization characteristics of the single-mode optical fiber, a MIMO-framework-based optical OFDM system was proposed and an experimental platform was built. By combining two 12Gb/s OFDM signals into one 24Gb/s signal, a two-way signal demodulated output was achieved. Experimental results show that the system can extend the fiber channel spectrum allocation and increase channel capacity, obtaining strong against fiber dispersion.