| 高速光通信系统调制格式的仿真研究 |
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| 引用本文： | 黄艳华,强世锦.高速光通信系统调制格式的仿真研究[J].通信技术,2010,43(10):33-36. |
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| 作者姓名： | 黄艳华 强世锦 |
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| 作者单位： | 武汉职业技术学院通信工程系,湖北,武汉,430074 |
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| 摘 要： | 使用光通信系统仿真软件,对非归零（NRZ）、归零（RZ）、载波抑制归零（CS-RZ）和归零差分移相键控（RZ-DPSK）四种调制格式信号在40Gb/s单信道传输系统中的非线性效应和色散容忍度进行比较,并对四种格式信号在G.652光纤中的长距离传输进行了仿真,结果表明：CS-RZ具有更优的抗噪声能力,RZ-DPSK格式具有更优的非线性容忍度。在噪声受限系统中,G.652光纤作为传输介质,CS-RZ格式的传输性能最优。
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| 关 键 词： | 调制格式 非线性效应 色散容限 噪声 仿真 |
Simulation on Modulation Formats in High-Speed Optical Transmission System |
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| HUANG Yan-hua,QIANG Shi-jin.Simulation on Modulation Formats in High-Speed Optical Transmission System[J].Communications Technology,2010,43(10):33-36. |
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| Authors: | HUANG Yan-hua QIANG Shi-jin |
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| Affiliation: | (Department of Telecommunication Engineering,Wuhan Polytechnic,Wuhan Hubei 430074,China) |
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| Abstract: | With optisystem simulation software,spectra,nonlinear effect and dispersion tolerance of the four kinds of modulation formats in the 40Gb/s single channel system,including NRZ,RZ,CS-R2 and RZ-DPSK,are compared,and the 40Gb/s single channel transmission over G.652 fiber for each format is simulated.The simulation result shows that CS-RZ format has better anti-noise performance than the others,RZ-DPSK format could offer higher nonlinearity tolerance than the others,and the transmission performance of CS-RZ is the best in noise-limited system with G.652 fiber as the transmission medium. |
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| Keywords: | modulation format nonlinear effect chromatic dispersion noise simulation |
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