Photonic Generation of M-QAM/M-ASK Signals at Microwave/Millimeter-Wave Band Using Dual-Drive Mach-Zehnder Modulators With Unequal Amplitudes

被引：10
|
作者：
Zhang, Ye [1 ]
Xu, Kun [1 ]
Zhu, Ran [1 ]
Li, Jianqiang [1 ]
Wu, Jian [1 ]
Hong, Xiaobin [1 ]
Lin, Jintong [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Key Lab Opt Commun & Lightwave Technol, Minist Educ, Beijing 100876, Peoples R China
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2008年 / 26卷 / 13-16期
基金：
中国国家自然科学基金;
关键词：
Amplitude shift keying (ASK); Mach-Zehnder modulator (MZM); photonic vector modulation (PVM); quadrature amplitude modulation (QAM); radio-over-fiber (RoF);
D O I：
10.1109/JLT.2008.927597
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Based on photonic vector modulation (PVM) techniques, several novel schemes are proposed to generate 4-ary amplitude shift keying (4-ASK), 16-ary quadrature amplitude modulation (16-QAM), and 16-ary amplitude shift keying (16-ASK) signals at microwave/millimeter-wave (mm-wave) band. First, a 4-ASK signal generation architecture based on dual-drive Mach-Zehnder modulators (MZMs) with unequal amplitudes is proposed and experimentally demonstrated. Then by combining two 4-ASK signal generation schemes in parallel, PVM architectures for 16-QAM and 16-ASK signal generation are proposed employing three MZMs, a tunable optical delay line (ODL), and an optical attenuator. The detailed theoretical analysis, experiment, and simulation certification of these structures are carried out. Compared with the conventional methods, the electronic driven circuits in the proposed schemes are simplified by employing PVM techniques.
引用
收藏
页码：2604 / 2610
页数：7
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