@InProceedings{Fischer26ECOC, author = {R. Fischer and S. Chimmalgi and A. Rode and L. Schmalen}, title = {Joint probabilistic and geometric constellation shaping for complexity-constrained direct detection optical systems}, booktitle = {Proc. Eur. Conf. Opt. Commun. (ECOC)}, address = {Malaga, Spain}, month = Sep, year = {2026}, }