Title :
Effect of Mach-Zehnder modulator dc extinction ratio on single sideband modulation radio over fiber link
Author :
Chen, Xiaogang ; Huang, Dexiu
Author_Institution :
College of Science, China Three Gorges University, Yichang, Hubei, 443002 China
Abstract :
The effect of Mach-Zehnder modulator (MZM) direct current (DC) extinction ratio on single sideband (SSB) radio over fiber (RoF) link is analyzed and simulated, finite extinction ratio and drive signal unbalanced ratio of dual-drive MZM (DD-MZM) are considered. Our results show that power variation of target signal increase and harmonic suppression ratio decrease with the decline of extinction ratio. However, for a nonideal modulator with low extinction ratio, optimum drive signal unbalanced ratio could be applied to obtain a high quality microwave signal.
Keywords :
Amplitude modulation; Educational institutions; Electrooptic modulators; Extinction ratio; Harmonics suppression; Intensity modulation; Optical fiber networks; Optical fibers; Optical modulation; Signal analysis; Extinction ratio; Mach-Zehnder modulator (MZM); Radio over fiber (RoF); Single sideband (SSB) modulation;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2009 Asia
Conference_Location :
Shanghai, China
Print_ISBN :
978-1-55752-877-3
Electronic_ISBN :
978-1-55752-877-3
