| 柏松,胡贵军,闫李,常玉鑫.模式群分集复用系统中发送端信号光入射条件的优化[J].光电子激光,2015,26(5):869~876 |
| 模式群分集复用系统中发送端信号光入射条件的优化 |
| Parameters optimization for the incident signal light in MGDM systems |
| 投稿时间：2014-11-13 |
| DOI： |
| 中文关键词: 光通信 模式群分集复用(MGDM) 选择模式激发 码间干扰(ISI) 信道串扰(ICI) |
| 英文关键词:optical communication mode group diversity multiplexing (MGDM) selective mo de excitation inter-symbol interference (ISI) inter-channel interference (IC I) |
| 基金项目:国家自然科学基金(61177066)资助项目 (吉林大学 通信工程学院,吉林 长春 130012) |
|
| 摘要点击次数: 1280 |
| 全文下载次数: 5 |
| 中文摘要: |
| 针对模式群分集复用(MGDM)系统运算量大和硬件 实现困难的问题。通过在发送 端选择最佳的入射偏芯距和高斯光尺寸对信号光入射条件的优化,最大限度降低系统的码间 干扰(ISI)和信道串扰(ICI)的程度。在不进行电色散补偿的情 况下,实现了两路10 Gb/s信号在多模光纤(MMF)中有效传输400m, 误码率(BER)低于10－3。 |
| 英文摘要: |
| The dominant limitations for the transmission performance of mode grou p diversity multiplexing (MGDM) systems are inter-symbol interference (ISI) and inter-channel interference (IC I) existing in transmission link.And typically,complex equalization algorithm will be employed to compensate these i mpairments at the receiver. However,the signal processing will increase the computational complexity and th e difficulty of the implementation of hardware.In this paper,we investigate the relationship between different incide nt conditions of the signal light and the number of the excited mode groups,and propose the method of optimizing the inci dent conditions of the signal light at the transmitter,in order to reduce the ISI and ICI existing in tr ansmission link to the minimal level and improve the transmission performance of the system to a great extent.By combining the t heoretical calculation and simulated verification,the optimal conditions of the incident signal light are obtained,a nd the simulation results show that after the optimization for the core-offset distance and the Gaussian optical spot siz e at the transmitter,the MGDM system can realize that two 10Gbit/s signals are transmitted over 400m multi-mode fiber without any electronic dispersion co mpensation and the bite error rate is lower than 10－3. |
| 查看全文 下载PDF阅读器 |
| 关闭 |
|
|
|
|
|