Title :
Two-stage feed-forward carrier phase recovery algorithm for high-order coherent modulation formats
Author :
Zhou, Xiang ; Yu, Jianjun
Author_Institution :
AT&T Labs.-Res., Middletown, NJ, USA
Abstract :
An improved linewidth-tolerant two-stage feed-forward carrier phase recovery algorithm is proposed for high-order coherent modulation formats. Experimentally we show that the proposed new algorithm can reduce the required compute power by more than a factor of two for square 36QAM.
Keywords :
feedforward; light coherence; optical fibre communication; optical modulation; quadrature amplitude modulation; QAM; feed-forward carrier phase recovery algorithm; high-order coherent modulation formats; Bit error rate; Laser feedback; Maximum likelihood estimation; Modulation; Optical noise; Phase estimation; Signal to noise ratio;
Conference_Titel :
Optical Communication (ECOC), 2010 36th European Conference and Exhibition on
Conference_Location :
Torino
Print_ISBN :
978-1-4244-8536-9
Electronic_ISBN :
978-1-4244-8534-5
DOI :
10.1109/ECOC.2010.5621271
