Title :
Experimental demonstration of the impact of MZM non-linearity on direct-detection optical OFDM
Author :
Omomukuyo, Oluyemi ; Thakur, Manoj P. ; Mitchell, Jason E.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, London, UK
Abstract :
In this paper, we present experimental demonstrations of the effects on the system performance of a direct-detection optical Orthogonal Frequency Division Multiplexing (DD-OOFDM) system due to variation of the bias voltage to the Mach-Zehnder modulator (MZM). This work also investigates how a variation in the modulation format influences the non-linear distortion introduced by the MZM characteristic and hence the system performance. System performance is evaluated at 3 Gbaud symbol rate using Error Vector Magnitude (EVM) measurements as a performance metric.
Keywords :
OFDM modulation; multiplexing; optical fibre communication; optical modulation; 3 Gbaud symbol rate; DD-OOFDM system; EVM measurements; MZM nonlinearity; Mach-Zehnder modulator; direct-detection optical OFDM; direct-detection optical orthogonal frequency division multiplexing system; error vector magnitude measurements; Orthogonal frequency division multiplexing (OFDM); direct detection; mach-zehnder modulator (MZM); modulation format; nonlinearity; optical fibre communication;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2012 IEEE
Conference_Location :
Shanghai
Print_ISBN :
978-1-4673-0436-8
DOI :
10.1109/WCNC.2012.6524250
