| 一种利用EAM实现高效下变频和远程传送光LO信号的ROF结构 |
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| 引用本文： | 皮雅稚,陈林,余建军. 一种利用EAM实现高效下变频和远程传送光LO信号的ROF结构[J]. 高技术通讯, 2009, 19(4). DOI: 10.3772/j.issn.1002-0470.2009.04.017 |
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| 作者姓名： | 皮雅稚 陈林 余建军 |
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| 作者单位： | 湖南大学计算机与通信学院,长沙,410082;湖南大学微纳光电器件及应用教育部重点实验室,长沙,410082 |
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| 基金项目： | 国家高技术研究发展计划(863计划)，湖南省自然科学基金，教育部光通信和光波技术重点实验室(北京邮电大学)开放基金 |
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| 摘 要： | 提出了一种新颖的光纤无线通信(ROF)系统中高效全光下变频的方案.用此方案可远程传送光本振信号,在无需改变中心站配置和复杂度的情况下,仅需在基站使用一个电吸收调制器就能同时实现对上行链路数据的下变频并进行调制,使得基站不需要光源和本振射频源,大大减小了基站的复杂度,节约了系统成本.通过模拟和实验表明,光本振信号在光纤中传输20km后,对上行链路数据进行相干接收,其功率代价小于4dB.
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| 关 键 词： | 光纤无线通信(ROF) 下变频 电吸收调制器(EAM) 远程光本振信号传送 |
A novel ROF scheme for high efficiency down-conversion and transponding optical LO signals using an electro-absorption modulator |
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| Pi Yazhi,Chen Lin,Yu Jianjun. A novel ROF scheme for high efficiency down-conversion and transponding optical LO signals using an electro-absorption modulator[J]. High Technology Letters, 2009, 19(4). DOI: 10.3772/j.issn.1002-0470.2009.04.017 |
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| Authors: | Pi Yazhi Chen Lin Yu Jianjun |
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| Affiliation: | Pi Yazhi Chen Lin Yu Jianjun(School of Computer and Communication,Hunan University,Changsha 410082)(Key Laboratory for Miero/Nano Opto-Electronic Devices of Ministry of Education,Changsha 410082) |
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| Abstract: | This paper proposes a novel scheme for all-optical high efficiency down-conversion in a radio-over-fiber(ROF)sys- tem .With the scheme,remote delivery of optical local oscillator(LO)signals can be realized,with no need to change the configuration of the center station,and only one electro-absorption modulator can he employed at base stations(BSs)to simultaneously realise down-conversion of the uplink data and modulation.Thus,the lasers and local oscillators are not necessary at BSs,which can largely simplif... |
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| Keywords: | radio-over-fiber (ROF) down-conversion electro-absorption modulator (EAM) remote optical LO delivery |
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