16×40 Gbit/s DWDM系统色散补偿和调制方式研究

张鹏飞; 王华奎

光通信研究, 2013 (1): 1, 网络出版: 2013-02-28

16×40 Gbit/s DWDM系统色散补偿和调制方式研究

Research on dispersion compensation and modulation mode for 16×40 Gbit/s DWDM systems

论文大纲

张鹏飞王华奎

作者单位

太原理工大学信息工程学院, 山西太原 030024

密集波分复用载波抑制归零双二进制归零改进的双二进制归零 DWDM CSRZ DRZ MDRZ

摘要

对传输容量为16×40 Gbit/s、传输距离为500~2 000 km的DWDM(密集波分复用)系统进行了研究。分析了不同调制方式(CSRZ(载波抑制归零)码、DRZ(双二进制归零)码和MDRZ(改进的双二进制归零)码)、不同色散补偿方案(前置、后置和中间色散补偿)对系统传输性能的影响。仿真结果表明, 当传输距离超过1 500 km后, MDRZ码能够很好地抑制FWM(四波混频)效应, 提高系统性能; 中间色散补偿方案比前置色散补偿和后置色散补偿有更好的补偿效果。

Abstract

In this paper, a 16×40 Gbit/s DWDM systems with a long haul (500~2 000 km) is studied and the effects of different modulation modes (Carrier-Suppressed Return-to-Zero (CSRZ), Duobinary Return-to-Zero (DRZ) and Modified Duobinary Return-to-Zero (MDRZ)) and dispersion compensation (pre-, post- and intermediate) schemes on its transmission performances analyzed. Simulation results show that when the transmission distance is beyond 1 500 km, the Four-Wave Mixing (FWM) effects are well suppresses in the MDRZ mode so that its performances are improved, and better compensation results are achieved when the intermediate dispersion compensation scheme is adopted than the other two.

参考文献

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张鹏飞, 王华奎. 16×40 Gbit/s DWDM系统色散补偿和调制方式研究[J]. 光通信研究, 2013, 39(1): 1. Zhang Pengfei, Wang Huakui. Research on dispersion compensation and modulation mode for 16×40 Gbit/s DWDM systems[J]. Study On Optical Communications, 2013, 39(1): 1.

16×40 Gbit/s DWDM系统色散补偿和调制方式研究

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