@InProceedings{buchali2017flexible, author = {Buchali, Fred and Idler, Wilfried and Schmalen, Laurent and Hu, Qian}, title = {Flexible optical transmission close to the Shannon limit by probabilistically shaped QAM}, booktitle = {Proc. Opt. Fiber Commun. Conf. (OFC)}, pages = {M3C–3}, address = {Los Angeles, CA, USA}, month = Mar, year = {2017}, }