| 10Gb/s和40Gb/s RZ-DPSK电预失真系统中非线性效应的研究 |
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| 引用本文： | 赵源. 10Gb/s和40Gb/s RZ-DPSK电预失真系统中非线性效应的研究[J]. 上海电力学院学报, 2010, 0(11) |
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| 作者姓名： | 赵源 |
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| 作者单位： | 北京邮电大学信息与通信工程学院; |
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| 基金项目： | 国家自然科学基金资助项目(60932004); 国家“863”计划资助项目(2009AA01Z253,2009AA01A345,2009AA01Z256); 国家“973”计划(2007CB310705) |
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| 摘 要： | 通过仿真研究了10和40Gb/s RZ-DPSK电预失真(EPD)系统中的自相位调制(SPM)和交叉相位调制(XPM)等非线性效应。EPD系统中的非线性效应比光色散补偿(ODC)中的大,但在不同比特率下非线性效应不同。对800km标准单模光纤(SSMF)传输的仿真的结果表明:单信道传输时受到SPM影响,比特率为10Gb/s的EPD系统的非线性阈值比ODC系统的小6dBm以上,而当比特率为40Gb/s时的EPD系统非线性阈值只比ODC系统小2dBm。波分复用(WDM)系统中受到SPM和XPM的影响,比特率为10Gb/s的EPD系统的非线性阈值比ODC系统的小6dBm,而比特率为40Gb/s时的EPD系统非线性阈值比ODC系统的小2dBm。研究结果表明,当比特率升高时,EPD系统的非线性效应减弱。
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| 关 键 词： | 光纤通信 非线性效应 电预失真(EPD) |
Study on fiber nonlinearities in 10 Gb/s and 40 Gb/s RZ-DPSK electrical pre-distortion systems |
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| ZHAO Yuan. Study on fiber nonlinearities in 10 Gb/s and 40 Gb/s RZ-DPSK electrical pre-distortion systems[J]. Journal of Shanghai University of Electric Power, 2010, 0(11) |
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| Authors: | ZHAO Yuan |
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| Affiliation: | College of Information , Communication Engineering,Beijing University of Posts , Telecommunications,Beijing 100876,China |
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| Abstract: | The fiber nonlinearities of self-phase modulation(SPM) and cross-phase modulation(XPM) in 40 Gb/s and 10 Gb/s return to zero differential phase shift keying(RZ-DPSK) electrical pre-distortion (EPD) systems are studied by simulations.Nonlinearity in EPD system is more severe than that in optical dispersion compensation(ODC) system,but the degree differs depending on the bit rate.Simulation results of 800 km transmission over a standard single mode fiber(SSMF) show that in the single channel transmission infl... |
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| Keywords: | optical fiber communication nonlinearity electrical pre-distortion(EPD) |
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