Title :
Nonlinear mitigation using carrier phase estimation and digital backward propagation in coherent QAM transmission
Author :
Chien-Yu Lin ; Asif, R. ; Holtmannspoetter, Michael ; Schmauss, Bernhard
Author_Institution :
High Freq. Technol., Univ. of Erlangen-Nuremberg, Erlangen, Germany
Abstract :
We investigate the performance of carrier phase estimation (CPE) and digital backward propagation (DBP) in compensating fiber nonlinearity for 224Gbps PM-4QAM and PM-16QAM coherent systems. In the presence of CPE, the number of DBP steps can be reduced.
Keywords :
optical fibre communication; optical modulation; quadrature amplitude modulation; PM-16QAM coherent system; PM-4QAM coherent system; bit rate 22 Gbit/s; carrier phase estimation; coherent QAM transmission; digital backward propagation; nonlinear mitigation; Bit error rate; Digital signal processing; Optical fiber polarization; Optical noise; Phase estimation; Quadrature amplitude modulation; Signal to noise ratio;
Conference_Titel :
Optical Communications (ECOC), 2012 38th European Conference and Exhibition on
Conference_Location :
Amsterdam
