Title :
Bayesian filtering for phase noise characterization and carrier synchronization of up to 192 Gb/s PDM 64-QAM
Author :
Zibar, D. ; Carvalho, Luis ; Piels, Molly ; Doberstein, Andy ; Diniz, Julio ; Nebendahl, Bernd ; Franciscangelis, Carolina ; Estaran, Jose ; Haisch, Hansjoerg ; Gonzalez, Neil ; de Oliveira, J.R.F. ; Monroy, I.T.
Author_Institution :
DTU Fotonik, Tech. Univ. of Denmark, Lyngby, Denmark
Abstract :
We show that phase noise estimation based on Bayesian filtering outperforms conventional time-domain approaches in the presence of moderate measurement noise. Additionally, carrier synchronization based on Bayesian filtering, in combination with expectation maximization, is demonstrated for the first time experimentally.
Keywords :
Bayes methods; expectation-maximisation algorithm; filtering theory; optical communication; optical modulation; phase noise; quadrature amplitude modulation; Bayesian filtering; PDM 64-QAM; bit rate 192 Gbit/s; carrier synchronization; coherent optical communication systems; expectation maximization; phase noise characterization; phase noise estimation; spectral efficiency; Bayes methods; Estimation; Filtering; Laser noise; Optical noise; Phase noise; Signal to noise ratio;
Conference_Titel :
Optical Communication (ECOC), 2014 European Conference on
Conference_Location :
Cannes
DOI :
10.1109/ECOC.2014.6963844
