摘要
近年来,光纤通信主要应用于单模系统中,扩充容量一般应用波分复用技术。而随着传输容量逐渐逼近香浓极限,光纤通信技术开始向空分复用方向发展。模分复用是一种利用光波的空间自由度来增加光通信容量的复用技术。它作为一种可以克服单模光纤通信系统传输容量局限的复用方式,受到了广泛的关注。文中就模分复用系统中关键性技术的研究进展进行了评述,主要包含模分复用/解复用器,少模/多模光纤,以及MIMO数字信号处理3个方面。
Current optical fiber communication is mostly used in single-mode system. The wavelength di- vision multiplexing （WDM） technology is utilized to enhance the transmission capacity. With the trans- mission capacity of optical fiber approaching to Shannon limit, the space division multiplexing （ SDM ） has received increasing attention in improving the capacity. Mode division multiplexing （MDM） technol- ogy can increase the capacity of optical communication system by using the spatial degrees of freedom. The multiplexing technology can overcome the limitation of the transmission capacity of single-mode opti- cal fiber communication system. The research progress on the key technologies in the mode division mul- tiplexing system is commented on three aspects ：mode division （de）multiplexer, few/multi-mode fiber and MIMO digital signal processing.
出处
《南京邮电大学学报（自然科学版）》
北大核心
2018年第1期37-44,共8页
Journal of Nanjing University of Posts and Telecommunications：Natural Science Edition
基金
国家自然科学基金(61077084
61571237)
江苏省自然科学基金(BK20151509)资助项目
关键词
光纤通信
模分复用
复用/解复用器
少模光纤
信道均衡算法
optical fiber communication
mode division multiplexing
（de）multiplexer
few-mode fiber
channel equalization algorithm
