| 光数字相干接收机中色散补偿模块设计与优化 |
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| 引用本文： | 徐霞,席丽霞,张晓光,童程.光数字相干接收机中色散补偿模块设计与优化[J].光学学报,2011(11):59-63. |
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| 作者姓名： | 徐霞 席丽霞 张晓光 童程 |
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| 作者单位： | 北京邮电大学信息光子学与光通信国家重点实验室; |
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| 基金项目： | 国家自然科学基金(60977049); 北邮青年专项(BUPT 2009RC0413)资助课题 |
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| 摘 要： | 在高速光纤通信数字相干接收系统中,色散补偿模块的结构和性能将直接决定其是否具有实用价值.设计了比传统的有限脉冲响应(FIR)滤波器结构简单的偶对称型FIR滤波器,并通过数值仿真分析了FIR滤波器长度选取对补偿效果的影响.研究结果表明,在接收端光信噪比(OSNR)代价不高于1 dB的情况下,FIR滤波器长度折衷选取为最大...
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| 关 键 词： | 光纤光学与光通信 色散补偿滤波器 有限脉冲响应滤波 偶对称 |
Design and Optimization of Chromatic Dispersion Compensation Block in Digital Coherent Optical Receiver |
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| Xu Xia Xi Lixia Zhang Xiaoguang Tong Cheng.Design and Optimization of Chromatic Dispersion Compensation Block in Digital Coherent Optical Receiver[J].Acta Optica Sinica,2011(11):59-63. |
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| Authors: | Xu Xia Xi Lixia Zhang Xiaoguang Tong Cheng |
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| Institution: | Xu Xia Xi Lixia Zhang Xiaoguang Tong Cheng(State Key Laboratory of Information Photonics and Optical Communications,Beijing University of Posts and Telecommunications,Beijing 100876,China) |
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| Abstract: | In digital coherent receivers of high-speed optical fiber communication,the structure and performance of chromatic dispersion compensation block determines its practical value directly.A finite impulse response(FIR) filter with simpler even-symmetric structure is designed,and the effect of different lengths of FIR filter on chromatic dispersion compensation performance is discussed through numerical simulation.The results show that the length of FIR filter can be reduced to 65 percent of its theoretical max... |
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| Keywords: | fiber optics and optical communications chromatic dispersion compensation filter finite impulse response filtering even-symmetric |
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