背对背IIMDD OOFDM系统的仿真研究及分析

Simulation and Performance Analysis of Back-to-Back IMDD Optical OFDM System

光正交频分复用技术具有高频谱利用率、强色散容忍性和灵活的扩展性等优势,已广泛应用于无源光网络(PON)、光载射频通信系统(ROF)及长途骨干网光纤通信系统等领域。从理论上研究了背对背光正交频分复用(OOFDM)系统,结合强度调制直接检测(IMDD),通过仿真验证了正交频分复用(OFDM)PON系统的传输性能,为实际系统设计和实用推广提供了重要参考。

Optical orthogonal frequency division multiplexing has many advantages,such as high spectral efficiency,strong dispersion tolerance and flexible scalability.It has been widely used in passive optical network(PON),optical carrier radio frequency communication(ROF)and long distance backbone fiber-optic communication systems.In this paper,back-to-back optical orthogonal frequency division multiplexing(OOFDM)system combined with intensity modulation direct detection(IMDD)is studied in theory,and the transmission performance of orthogonal frequency division multiplexing(OFDM)PON system is verified by simulation,which provides an important reference for practical system design and application.