@Article{pan2015optical, author = {Pan, Chunpo and Bülow, Henning and Idler, Wilfried and Schmalen, Laurent and Kschischang, Frank R}, title = {Optical Nonlinear Phase Noise Compensation for 9x32-Gbaud PolDM-16 QAM Transmission Using a Code-Aided Expectation-Maximization Algorithm}, journal = {J. Lightw. Technol.}, volume = {33}, number = {17}, pages = {3679–3686}, month = Sep, year = {2015}, }