Revisiting Probabilistic Constellation Shaping in Unamplified Coherent Optical Links
Oliveira, B. M.
; Silva, J. H.
;
Neves, M. S.
;
Guiomar, F. P.
;
Medeiros, M. C. R.
;
Monteiro, P.
Revisiting Probabilistic Constellation Shaping in Unamplified Coherent Optical Links, Proc OSA Optical Fiber Communications - OFC, San Diego, United States, Vol. , pp. - , March, 2023.
Digital Object Identifier: 10.23919/OFC49934.2023.10117240
Abstract
Considering an unamplified 400ZR-compatible system, we experimentally
demonstrate that the reverse Maxwell-Boltzmann distribution significantly enhances PCS performance. With bit-rate adaptation down to 250 Gbps, we find power budget gains of more than 2 dB.
