| 啁啾光纤光栅对光纤CATV系统中二阶非线性失真的改善 |
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| 引用本文： | 叶青,刘峰,蔡海文,瞿荣辉,方祖捷.啁啾光纤光栅对光纤CATV系统中二阶非线性失真的改善[J].中国物理 B,2005,14(5):969-973. |
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| 作者姓名： | 叶青 刘峰 蔡海文 瞿荣辉 方祖捷 |
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| 作者单位： | Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China;Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China;Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China;Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China;Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China |
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| 基金项目： | Supported by the State Key Development for Basic Research of China (Grant No 2001CCA04600), and the Knowledge Innovation Program of the Chinese Academy of Sciences, and the Science and Technology Development Fund of Shanghai Science Committee. |
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| 摘 要： | 在理论上，我们利用光波的时域场包络方程分析了光纤CATV系统中的二阶非线性失真问题和获得理论的表达式，且分析的结果和数值模拟的结果很好的吻合。在实验上，利用啁啾光纤光栅的调谐特性来改变系统的色散补偿量进行了125公里的光纤CATV的系统实验，很好的证实了以上的理论推导。理论和实验的结果都证实适当的选择啁啾光纤光栅的色散补偿量可以很好的改善系统二阶非线性失真的性能。
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| 关 键 词： | 二阶非线性失真，啁啾光纤光栅，光纤CATV系统 |
| 收稿时间： | 2004-09-21 |
Composite second-order performance improvement in optical fibre CATV transmission system using chirped fibre grating |
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| Ye Qing,Liu Feng,Cai Hai-Wen,Qu Rong-Hui and Fang Zu-Jie.Composite second-order performance improvement in optical fibre CATV transmission system using chirped fibre grating[J].Chinese Physics B,2005,14(5):969-973. |
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| Authors: | Ye Qing Liu Feng Cai Hai-Wen Qu Rong-Hui and Fang Zu-Jie |
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| Institution: | Laboratory of Information Optics, Shanghai Institute of Optics and Fine Mechanics, The Chinese Academy of Sciences, Shanghai 201800, China |
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| Abstract: | Theoretically, we analyze the dispersion compensation characteristics of the chirped fiber grating (CFG) in an optical fiber cable television (CATV) system and obtain the analytic expression of the composite second-order (CSO) distortion using the time-domain form of the field envelope wave equation. The obtained result is in good agreement with the numerical simulation result. Experimentally, we verify the result by making use of the tunable characteristics of CFG to change the dispersion compensation amount and obtain an optimal CSO performance in a 125-km fiber transmission link. Both the theoretical and experimental results show that the CSO performance can be improved by properly choosing the dispersion compensation amount for a certain fiber transmission link. |
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| Keywords: | Composite second order Chirped fiber grating Optical fiber CATV transmission system |
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