| 基于雪崩二极管的光正交频分复用系统接收机 |
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| 引用本文： | 张磊. 基于雪崩二极管的光正交频分复用系统接收机[J]. 上海电力学院学报, 2010, 0(12) |
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| 作者姓名： | 张磊 |
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| 作者单位： | 北京邮电大学信息光电子学与光通信教育部重点实验室; |
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| 基金项目： | 国家自然科学基金资助项目(60932004,60677004,60977046); 国家“863”计划资助项目(2009AA01Z220); 中央高校基本科研业务资助项目(2009RC0314) |
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| 摘 要： | 提出了一个完整的高灵敏度光正交频分复用(OOFDM)系统,以实现高速长距离传输。实验中,将10Gbit/s的4QAM调制OOFDM信号在光纤中传输了50km,直接探测后得到的星座图和误码率都达到了良好的效果。在此基础上,对比了采用雪崩二极管(APD)和传统的光电二极管(PIN)两种不同的探测方式,结果发现,使用APD探测使得OOFDM系统接收的灵敏度提升了5.2dB。
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| 关 键 词： | 高速光通信系统 光正交频分复用(OOFDM) 雪崩二极管(APD) |
Receiver of optical orthogonal frequency division multiplexing system based on avalanche photodiodes |
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| ZHANG Lei. Receiver of optical orthogonal frequency division multiplexing system based on avalanche photodiodes[J]. Journal of Shanghai University of Electric Power, 2010, 0(12) |
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| Authors: | ZHANG Lei |
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| Affiliation: | Key Laboratory of Information Photonics , Optical Communications,Ministry of Education,Beijing University of Posts , Telecommunications,Beijing 100876,China |
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| Abstract: | A complete optical orthogonal frequency division multiplexing(OOFDM) system is presented in this paper,which is employed to achieve long distance transmission with high efficiency.The OOFDM signal in 4-quadrature amplitude modulation(QAM) with the code rate of 10 Gb/s is transmitted 50 km in the fiber,and the constellation diagram and error rate obtained through direct detection show good performance.Two detection fashions that use avalanche photodiode(APD) and traditional photodiode(PIN) respectively is co... |
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| Keywords: | high-speed optical communication system optical orthogonal frequency division multiplexing(OOFDM) avalanche photodiode(APD) |
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