基于DML的18.6Gb/s无色散补偿DDO-OFDM系统  

18.6Gb/s DDO-OFDM system without dispersion compensation based on DML

作　　者：林伟[1,2] 李朝晖[2] 李建平[2] 付建国[1] 

机构地区：[1]暨南大学信息科学技术学院电子系,广州510632 [2]暨南大学光子技术研究所,广州510632

出　　处：《光通信技术》2012年第10期50-52,共3页Optical Communication Technology

摘　　要：为了降低直接检测光正交频分复用(DDO-OFDM)系统的成本并提高传输速率,采用载波选择性填充和预加重技术,利用带宽为10GHz的DML激光器实现了信号速率达18.6Gb/s的20km标准单模光纤(SSMF)无色散补偿的传输。实验结果表明利用本方案采用的技术,可以实现结构简单、频谱利用率高、成本低的直接检测OFDM传输系统。In order to reduce the cost of direct detection optical orthogonal frequency division multiplexing（DDO-OFDM） system and improve the transmission rate,we adopt a 10GHz DML laser as transmitter,using the selective filling scheme and pre-emphasis algorithm.The signal rate is up to 18.6Gb/s and we demonstrate 20km standard single-mode fiber transmission without dispersion compensation.The experimental results show that using this scheme,you can achieve a simple structure,high spectral efficiency,low cost direct-detection OFDM transmission system.

关 键 词：直接检测 光正交频分复用 载波选择性填充 预加重 

分 类 号：TN929.11[电子电信—通信与信息系统]