Full-Duplex Radio Over Fiber With a Centralized Optical Source for a 60 GHz Millimeter-Wave System With a 10 Gb/s 16-QAM Downstream Signal Based on Frequency Quadrupling

被引：18
作者：
Ma, Jianxin [1 ,2 ]
Zhan, Yu [1 ,2 ]
Zhou, Min [1 ,2 ]
Liang, Hao [1 ,2 ]
Shao, Yufeng [3 ,4 ]
Yu, Chongxiu [2 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Elect Engn, Beijing 100876, Peoples R China
[2] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China
[3] Fudan Univ, Dept Commun, Shanghai 200433, Peoples R China
[4] Fudan Univ, State Key Lab ASIC & Syst, Shanghai 200433, Peoples R China
来源：
JOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKING | 2012年 / 4卷 / 07期
基金：
中国博士后科学基金; 中国国家自然科学基金;
关键词：
Frequency quadrupling; Full-duplex link; 16-QAM; RoF (radio over fiber); LOCAL OSCILLATOR; TRANSMISSION; GENERATION; LINK;
D O I：
10.1364/JOCN.4.000557
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A full-duplex radio over fiber link scheme with 16 quadrature amplitude modulation (16-QAM) 10 Gb/s downstream and 2.5 Gb/s upstream signals is proposed. In the downlink, the 60 GHz dual-tone optical millimeter-(mm-) wave signal carrier is generated by the 15 GHz local oscillator via a Mach-Zehnder modulator with frequency quadrupling. The 16-QAM 5 GHz IF signal is up-converted to 65 GHz by modulating it on one of the two tones with single-sideband (SSB) modulation at the central station. At the remote base station, the 65 GHz SSB optical mm-wave signal is detected by a high-speed photodiode. After the 60 GHz uplink dual-tone optical mm-wave carrier is abstracted by optimized filtering, the uplink 63 GHz mm-wave signal is modulated onto it to down-convert to the 3 GHz SSB optical IF signal. Since both the down-and uplink optical mm-wave signals have SSB spectra with the signal modulated on one of the two tones, they suffer little from the fiber dispersion. The simulation results show that the bidirectional signals have good performance even after being transmitted over 30 km standard single mode fiber.
引用
收藏
页码：557 / 564
页数：8
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