| 高速光纤通信系统中高阶PMD的优化建模 |
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| 引用本文： | 陈颖,朱奇光,李志全.高速光纤通信系统中高阶PMD的优化建模[J].光学技术,2009,35(5). |
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| 作者姓名： | 陈颖 朱奇光 李志全 |
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| 作者单位： | 1. 燕山大学,电气工程学院,秦皇岛,066004
2. 燕山大学,信息科学与工程学院,秦皇岛,066004 |
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| 基金项目： | 国家自然科学基金资助项目(60877047);;河北省自然科学基金资助项目(20070216004) |
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| 摘 要： | 为了评估随机变化的偏振模色散(PMD)(包括一阶和二阶PMD)使系统信号裂化的程度,降低其对高速光纤通信系统传输速率和传输容量的不利影响,在斯托克斯空间中推导了偏振模色散(PMD)矢量的数学表达式。对PMD效应所导致的脉冲展宽进行了数学分析,给出了差分群时延(DGD)的变化、一阶PMD矢量和二阶PMD矢量方向的变化对脉冲展宽的影响。通过数学推导得出,在大多数情况下,二阶PMD无法完全补偿,需通过控制单元的调整使其对系统的影响达到极小值。通过实验分析,得到了和数学推导中同样的结果,从而证明了模型的正确性。
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| 关 键 词： | 光纤通信技术 偏振模色散 脉冲展宽 偏振模色散补偿 |
Optimal modeling for higher-order PMD in high-rate optical fiber communication system |
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| CHEN Ying,ZHU Qi-guang,LI Zhi-quan.Optimal modeling for higher-order PMD in high-rate optical fiber communication system[J].Optical Technique,2009,35(5). |
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| Authors: | CHEN Ying ZHU Qi-guang LI Zhi-quan |
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| Institution: | 1.Institute of Electrical Engineering;Yanshan University;Qinhuangdao 066004;China;2.College of Information Science and Engineering;China |
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| Abstract: | To evaluate the worsening degree of the transmission signals owing to the random polarization mode dispersion(including 1st and 2nd PMD) and reduce the adverse influence on the transmission rate and capacity of the high-bit optical fiber communication system,the mathematical expressions for the polarization mode dispersion(PMD) vector is derived in the stokes space.The explicit expressions for PMD-induced pulse broadening is obtained,and meanwhile,through the analysis on the expressions in different situati... |
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| Keywords: | optical fiber communication technology polarization mode dispersion pulse broadening polarization mode dispersion compensation |
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