Title :
Study of IQ imbalance effect in direct-detection optical OFDM systems
Author :
Li, Xinying ; Shao, Yufeng ; Zou, Shumin ; Hou, Chunning ; Zheng, Xi ; Liu, Xiao ; Zhang, Junwen ; Fang, Wuliang ; Chi, Nan
Author_Institution :
School of Information Science and Engineering, Fudan University, Shanghai 200433, China
Abstract :
IQ imbalance can result in severe performance degradation in direct-detection architectures. We build two back-to-back direct-detection optical OFDM systems, which implement DSB and SSB transmission, respectively. The tolerance to IQ imbalance of them is analyzed and compared using EVM and SER. We conclude that the DSB system has a stronger robustness to IQ imbalance than the SSB system.
Keywords :
Amplitude modulation; Degradation; OFDM modulation; Optical filters; Optical mixing; Optical modulation; Optical receivers; Optical transmitters; Particle beam optics; Photodiodes;
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
