| 16×40Gbit/s DWDM系统色散补偿和调制方式研究 |
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| 引用本文： | 张鹏飞,王华奎.16×40Gbit/s DWDM系统色散补偿和调制方式研究[J].光通信研究,2013,39(1):1-4. |
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| 作者姓名： | 张鹏飞 王华奎 |
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| 作者单位： | 张鹏飞:太原理工大学 信息工程学院, 山西 太原 030024
王华奎:太原理工大学 信息工程学院, 山西 太原 030024
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| 摘 要： | 对传输容量为16×40Gbit/s、传输距离为500～2 000km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 500km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。
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| 关 键 词： | 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 |
| 收稿时间： | 2012/6/19 |
Research on dispersion compensation and modulation mode for 16×40 Gbit/s DWDM systems |
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| 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):1-4. |
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| Authors: | Zhang Pengfei Wang Huakui |
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| Affiliation: | (College of Information Engineering,Taiyuan University of Technology,Taiyuan 030024,China) |
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| 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. |
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| Keywords: | DWDM CSRZ DRZ MDRZ |
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