| 40Gb/s DWDM系统不同码型传输性能的比较 |
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| 引用本文： | 欧艺文,成纯富,王珊珊.40Gb/s DWDM系统不同码型传输性能的比较[J].光通信技术,2012,36(1):25-28. |
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| 作者姓名： | 欧艺文 成纯富 王珊珊 |
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| 作者单位： | 1. 武汉工业学院工商学院信息工程系,武汉,430065
2. 湖北工业大学,武汉,430068 |
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| 摘 要： | 采用Optisystem软件,对比分析了非归零码(NRZ)、归零码(RZ)、载波抑制归零码(CS-RZ)和载波抑制归零差分相移键控码(CSRZ-DPSK)四种码型在8×40Gb/s DWDM系统的传输性能。结果表明,CSRZ-DPSK码抗色度色散和PMD性能最优,CS-RZ码的OSNR容限最低。当入纤光功率适中、色散和色散斜率同时补偿时,CSRZ-DPSK码和CS-RZ码的最大传输距离超过2700km。
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| 关 键 词： | 码型 色度色散容限 PMD 非线性效应 OSNR容限 |
Performance comparison of different formats in 40Gb/s DWDM system |
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| OU Yi-wen
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CHENG Chun-fu
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WANG Shan-shan.Performance comparison of different formats in 40Gb/s DWDM system[J].Optical Communication Technology,2012,36(1):25-28. |
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| Authors: | OU Yi-wen CHENG Chun-fu WANG Shan-shan |
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| Affiliation: | 1(1.Department of Information Engineering,Wuhan Polytechnic University Industrial & commercial college,Wuhan 430065,China;2.Hubei University of Technology,Wuhan 430068,China) |
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| Abstract: | By using Optisystem software the performance comparison of NRZ,RZ,CS-RZ and CSRZ-DPSK four kinds of formats in the 40Gb/s DWDM system have been analyzed.The simulation shows that CSRZ-DPSK format has higher tolerance of chromatic dispersion and PMD than the others,and CS-RZ format has lowest OSNR tolerance.The longest transmission distance of CSRZ-DPSK format and CS-RZ format all exceed 2700km under the conditions of medium input optical power of each channel in the 40Gb/s DWDM system with dispersion and dispersion slope compensation. |
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| Keywords: | format chromatic dispersion tolerance PMD nonlinearity effects OSNR tolerance |
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