Centralized Lightwave Radio-Over-Fiber System With Photonic Frequency Quadrupling for High-Frequency Millimeter-Wave Generation
Centralized Lightwave Radio-Over-Fiber System With Photonic Frequency Quadrupling for High-Frequency Millimeter-Wave Generation
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DOI：
10.1109/lpt.2007.903875
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发表时间：
2007-09
影响因子：
2.6
通讯作者：
Jianjun Yu;Z. Jia;Ting Wang;G. Chang
中科院分区：
文献类型：
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作者：
Jianjun Yu;Z. Jia;Ting Wang;G. Chang
我们提出了一种新的光纤无线电架构，以减少系统成本在中心局（CO）和基站（BS）。在这种结构中，通过在CO中引入适当的直流偏置和光学滤波技术，产生了具有本振信号四倍频率的光学毫米波载波。通过使用分离的光载波沿着下行链路毫米波信号来携带上行数据，简化了BS。我们已经通过实验证明了高达64 GHz的光毫米波载波生成，以及超过20公里光纤的下行和上行信号传输，功率损失为1 dB。
We have proposed a novel radio-over-fiber architecture to reduce the system cost at both central office (CO) and base station (BS). In this architecture, by incorporating the proper dc bias and optical filtering techniques in CO, the optical millimeter- wave (mm-wave) carriers are generated with four times frequency of the local oscillator signal. The BS is simplified by using the separated optical carrier along with downlink mm-wave signals to carry the upstream data. We have experimentally demonstrated optical mm-wave carrier generation up to 64-GHz, and both down- and upstream signal delivery over 20 km fiber with 1-dB power penalty.