| 基于二级MZM相干调制实现高速长距离RoF通信 |
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| 引用本文： | 李广,陈银,黄旭光.基于二级MZM相干调制实现高速长距离RoF通信[J].华南师范大学学报(自然科学版),2015,47(1):22-25. |
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| 作者姓名： | 李广 陈银 黄旭光 |
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| 作者单位： | 1.(1.广东科学技术职业学院机械与电子工程学院,珠海 519090; |
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| 基金项目： | 国家自然科学基金项目(61077038)；广东省高等院校学科建设专项资金 |
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| 摘 要： | 提出并计算机仿真证明了基于二级光电双臂相干调制及双二进制光信息编码技术实现超高速超长距离光纤微波传输(Radio over Fiber)的系统设计方案. 通过第一级光电双臂相干调制构建光双二进制信号，其信号占用频谱带宽比NRZ码降低50%. 通过第二级光电双臂相干调制加载40 GHz超高频载波信号，实现光纤微波传输. 计算机仿真结果分析表明:CW激光光源发射功率为0 dBm，经过多级EDFA光信号放大与色散补偿光纤，在色散系数为17 ps/(nm·km)，衰减系数为0.2 dB/km的标准单模光纤中单通道传输，系统码元传输速率可达40 Gb/s、传输距离1 500 km以上.
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| 关 键 词： | 光电双臂相干调制 光双二进制 Radio over Fiber 光纤通信 无线通信 LTE Advanced eNode B |
| 收稿时间： | 2014-04-15 |
A High Speed Long Distance RoF System Based on Double Photoelectric Coherent Modulation |
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| Li Guang,Chen Yin,Huang Xuguang.A High Speed Long Distance RoF System Based on Double Photoelectric Coherent Modulation[J].Journal of South China Normal University(Natural Science Edition),2015,47(1):22-25. |
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| Authors: | Li Guang Chen Yin Huang Xuguang |
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| Institution: | 1.1. College of Mechanical and Electronic Engineering,Guangdong Institute of Science and Technology,Zhuhai 519090,China;2.2. Laboratory of Photonic Information Technology,South China Normal University,Guangzhou 510006,China |
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| Abstract: | A high speed long distance radio over fiber system based on double photoelectric arms coherent modulation and optical duo binary coding technology is proposed and demonstrated. Optical duo binary signal is built by the first photoelectric arms coherent modulation, in which occupancy bandwidth frequency spectrum is reduced by half than NRZ code. 40 GHz ultra high frequency microwave signal is loaded through second levels of photoelectric arms coherent modulation. The simulation results show that the 40 Gb/s data and UHF microwave with 40 GHz are successfully transmitted over 1 500 km distance of a single mode fiber with a dispersion of 17 ps/(nm·km), attenuation of 02 dB/km, a light source power of 0 dBm, EDFA and dispersion compensation optical fiber. |
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| Keywords: | photoelectric double arms coherent modulation optical duo-binary radio over fiber ( RoF) optical fiber communication wireless communication LTE Advanced eNode B |
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