Title :
Nonlinear impairment compensation using expectation maximization for PDM 16-QAM systems
Author :
Zibar, D. ; Winther, Ole ; Franceschi, Niccolo ; Borkowski, Robert ; Caballero, Antonio ; Arlunno, Valeria ; Schmidt, Mikkel N. ; Gonzales, Neil Guerrero ; Mao, B. ; Larsen, Knud J. ; Monroy, I.T.
Author_Institution :
DTU Fotonik, Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We show experimentally that by using non-linear signal processing based algorithm, expectation maximization, nonlinear system tolerance can be increased by 2 dB. Expectation maximization is also effective in combating I/Q modulator nonlinearities and laser linewidth.
Keywords :
expectation-maximisation algorithm; modulators; quadrature amplitude modulation; signal processing; PDM 16-QAM systems; expectation maximization; l/Q modulator nonlinearities; laser line width; nonlinear impairment compensation; nonlinear signal processing based algorithm; nonlinear system tolerance; Bit error rate; Dispersion; Modulation; Nonlinear optics; Nonlinear systems; Optical fibers; Signal processing algorithms;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
