| 偏振模色散所致光纤链路传输损伤分析 |
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| 引用本文： | 袁明辉.偏振模色散所致光纤链路传输损伤分析[J].激光技术,2009,33(4):397-399. |
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| 作者姓名： | 袁明辉 |
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| 作者单位： | 1.上海理工大学, 光电学院, 上海, 200093 |
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| 基金项目： | 上海市高校优秀青年教师科研专项基金，上海理工大学博士科研启动基金 |
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| 摘 要： | 为了研究偏振模色散所致光纤链路传输损伤,采用基于耦合非线性薛定谔方程的分步傅里叶法数值分析了1阶和2阶偏振模色散对光纤链路中非归零码、归零码及啁啾归零码脉冲信号的影响。结果表明,偏振模色散造成光纤链路性能的严重恶化,成为限制其性能的最主要因素之一。而且随着工作速度的提高,高阶偏振模色散的影响更大;采用合适的码型能在一定程度上减轻偏振模色散的影响,其中啁啾归零码略优于归零码,而归零码优于非归零码。
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| 关 键 词： | 光纤光学 偏振模色散 非归零码 归零码 啁啾归零码 |
| 收稿时间： | 2008-06-27 |
| 修稿时间： | 2008-07-16 |
PMD induced performance deterioration in fiber links |
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| YUAN Ming-hui.PMD induced performance deterioration in fiber links[J].Laser Technology,2009,33(4):397-399. |
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| Authors: | YUAN Ming-hui |
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| Abstract: | The performance deterioration induced by PMD is analyzed by the split-step Fourier method based on the coupled nonlinear Schrodinger equation, including the impact of first- and second-order PMD on the NRZ, RZ and CRZ codes in fiber links. The research results show that PMD deteriorates the performance of optical fiber links and becomes one of the main limiting factors. And with the increase of the working speed, the influence of higher-order PMD becomes worse. It can reduce the impact of PMD partially to use the right code pattern, that CRZ code is a little better than RZ code and RZ code is better than NRZ code. |
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| Keywords: | fiber optics polarization mode dispersion non-return-to-zero return-to-zero chirped return-to-zero |
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