| 平衡接收直接检测DPSK接收机噪声统计特性分析 |
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| 引用本文： | 袁博,段世刚,裴晓强.平衡接收直接检测DPSK接收机噪声统计特性分析[J].光学技术,2009,35(6). |
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| 作者姓名： | 袁博 段世刚 裴晓强 |
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| 作者单位： | 1. 兰州物理研究所,兰州,730000
2. 甘肃电力信息通信中心,兰州,730000 |
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| 摘 要： | 以带光前置放大器且采用MZI相干和直接检测方式的DPSK接收机为分析模型,从考虑线性附加噪声和非线性相位噪声入手,对噪声统计特性进行了数学分析,并推导出了概率密度函数和BER公式。结果表明:数值计算结果与已发表论文的试验结果较为吻合;非线性相位噪声会对系统性能造成严重影响;高斯近似法不能很好的分析此模型。
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| 关 键 词： | DPSK 非线性相位噪声 高斯近似法 噪声统计 误码率 |
Analysis of the noise statistics for DPSK receiver with MZI balanced direct detection |
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| YUAN Bo,DUAN Shi-gang,PEI Xiao-qiang.Analysis of the noise statistics for DPSK receiver with MZI balanced direct detection[J].Optical Technique,2009,35(6). |
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| Authors: | YUAN Bo DUAN Shi-gang PEI Xiao-qiang |
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| Institution: | 1.Lanzhou Institute of Physics;Lanzhou 730000;China;2.Gansu Electrical Information and Communication Center;China |
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| Abstract: | The statistical characteristic of noise is analyzed,and the expression for PDF and BER in the receiver model with preamplifier and MZI for direct detecting DPSK is got,where both linear additional noise and nonlinear phase noise are taken into consideration.The numerical result is in accord with the published experimental result,and show that traditional Gaussian approximate analysis isn't applicable to this model because of the effect of nonlinear phase noise on system. |
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| Keywords: | DPSK nonlinear phase noise Gaussian approximate analysis noise statistics BER |
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