Title :
Research of nonlinearity in OOFDM communication
Author :
Sun, Guodan ; Wang, Rong ; Pu, Tao ; Zhao, Zhishuang
Author_Institution :
Institute of Communication Engineering, PLA University of Science & Technology, Nanjing, China
Abstract :
A direct detection-optical orthogonal frequency division multiplexing (DD-OOFDM) system is studied. The nonlinearity impact of Mach-Zehnder modulator (MZM) on DD-OOFDM transmission is analyzed. Signal to noise ratio (SNR) after MZM is calculated by theory, and proved by simulation. The nonlinearity impact of fiber is analyzed. Pilot-assist (PA) approach based on linear interpolation algorithm is used to smooth channel response and the optimal fiber launch power and MZM modulated depth in this system is obtained.
Keywords :
Fiber nonlinear optics; Nonlinear optics; OFDM modulation; Optical fiber theory; Optical filters; Optical modulation; Optical receivers; Optical sensors; Signal to noise ratio; System performance; Mach-Zehnder modulator (MZM); direct detection; nonlinearity; optical orthogonal frequency division multiplexing (OOFDM);
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
