| 基于10Gb/sNRZ信号的全光四倍频时钟提取实验研究 |
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| 引用本文： | 周竹雅,江阳,徐静,李恒文,王顺艳.基于10Gb/sNRZ信号的全光四倍频时钟提取实验研究[J].贵州大学学报(自然科学版),2011,28(6):8-12. |
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| 作者姓名： | 周竹雅 江阳 徐静 李恒文 王顺艳 |
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| 作者单位： | 贵州大学理学院,贵州省光电子技术与应用重点实验室,贵州贵阳550025 |
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| 基金项目： | 贵州省优秀青年科技人才专项基金((2009)09);贵州省优秀科技教育人才省长基金((2009)98);贵州省国际科技合作项目((2009)700102) |
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| 摘 要： | 提出了一种从非归零(NRZ)码信号提取四倍频时钟的全光技术方案,并进行了实验验证.由于NRZ信号中没有时钟分量,因此首先利用半导体光放大器(SOA)中的非线性效应配合带通滤波器产生伪归零(PRZ)码信号,并通过光纤中的自相位调制产生高阶时钟分量,最后注入F-P滤波器得到四倍频的光时钟信号.实验演示中,从一路10Gb/s...
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| 关 键 词： | 时钟提取 F-P滤波器 自相位调制 半导体光放大器 |
All-optical Multiplication Clock Extraction from NRZ Signal |
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| ZHOU Zhu-ya
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JIANG Yang
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XU Jing
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LI Heng-wen
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WANG Shun-yan.All-optical Multiplication Clock Extraction from NRZ Signal[J].Journal of Guizhou University(Natural Science),2011,28(6):8-12. |
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| Authors: | ZHOU Zhu-ya JIANG Yang XU Jing LI Heng-wen WANG Shun-yan |
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| Institution: | (College of Science,Laboratory for Photoelectric Technology and Application,Guizhou University,Guiyang 550025,China) |
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| Abstract: | A scheme of a NRZ all-optical multiplication clock extraction was proposed and experimentally verified.As a result of the absence of the clock component in the NRZ modulation spectrum,firstly the non-linear effects in a semiconductor optical amplifier(SOA) combined with bandpass filter were used to produce pseudo-RZ(PRZ) signal,and self-phase modulation in optical fiber were utilized to generate higher order clock components.Finally,the signal was injected into a Fabry-Perot filter to recover the optical clock signal with multiplication factor of four.In the experimental demonstration,a 40GHz optical clock signal was generated from a 10Gb / s NRZ data stream.Both waveform and spectrum show the signal with good quality.In addition,the effect of clock signal shaping by using a SOA was also verified experimentally. |
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| Keywords: | clock extraction Fabry-Perot filter self-phase modulation semiconductor optical amplifier |
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