We numerically investigate the impact of symbol rate optimization (SRO) on 6-bit/4D-symbol formats. Improvement of nonlinear tolerance by SRO is observed for uniformly-distributed QAM and PSK but not for a probabilistically-shaped QAM signal.

© 2017 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription