Title :
Comparison between MZI and single phase-modulator for generating 112-Gbit/s PDM-QPSK signal
Author :
Wang, Junyi ; Gao, Kailu ; Yang, Lu ; He, Xuan ; Pan, Zhongqi
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Louisiana at Lafayette, Lafayette, LA, USA
Abstract :
We demonstrated the QPSK signal generated by a single phase-modulator (PM-QPSK) is more tolerant to fiber nonlinearity than that generated by the Mach Zehnder Interferometer (MZI-QPSK). Simulation of WDM system at 28-Gsymbol/s per polarization shows PM-QPSK outperforms MZI-QPSK in coherent systems when polarization multiplexing and dispersion management is used.
Keywords :
interferometers; multiplexing; phase modulation; quadrature phase shift keying; signal processing; MZI; Mach Zehnder interferometer; PDM-QPSK signal; fiber nonlinearity; polarization multiplexing; single phase-modulator; Dispersion; Optical modulation; Optical polarization; Phase shift keying; Wavelength division multiplexing;
Conference_Titel :
Communications and Photonics Conference and Exhibition (ACP), 2010 Asia
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-7111-9
DOI :
10.1109/ACP.2010.5682791
