| 光纤链路中高阶色散致调制不稳定性的研究 |
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| 引用本文： | 李院民,谭文群. 光纤链路中高阶色散致调制不稳定性的研究[J]. 适用技术之窗, 2008, 0(8): 46-48 |
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| 作者姓名： | 李院民 谭文群 |
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| 作者单位： | 南昌工程学院电气与电子工程系,江西南昌330099 |
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| 基金项目： | 南昌工程学院青年基金科技项目（编号2006KJ020） |
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| 摘 要： | 由于色散和非线性效应的相互作用，连续波或准连续波在光纤中传输时，会出现调制不稳定性。利用非线性薛定谔耦合方程，在假设光脉冲幅值受到微扰的情况下，用解析的方法，研究了有源光纤链路中，高阶色散导致的调制不稳定性，得出了调制不稳定性的增益谱。
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| 关 键 词： | 高阶色散 调制不稳定性 交叉相位调制 |
The Modulational Instability Due to High-order Dispersion in Link with Active Amplifiers |
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| Li Yuanmin,Tan Wenqun. The Modulational Instability Due to High-order Dispersion in Link with Active Amplifiers[J]. Science & Technology Plaza, 2008, 0(8): 46-48 |
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| Authors: | Li Yuanmin Tan Wenqun |
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| Affiliation: | (Department of Electric and Electronic Engineering, Nanchang Institute of Technology, Jiangxi Nanchang 330099) |
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| Abstract: | In optical fiber communication systems, the phenomena of the continuous waves break into a train of ultrashort pulse due to the interaction between optical fiber nonlinearity and group velocity dispersion is called modulational instability. In this paper, by use of coupled nonlinear Schr dinger equation （NLSE）, we have studied the modulational instability effect due to higher order dispersion when the amplitude of the pulses was perturbed slightly, and obtained the gain spectrum of the modulational instability. |
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| Keywords: | High-order-dispersion Modulational Instability Cross-phase Modulation |
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