WSS Filtering Penalties with Bandwidth-Variable Transceivers: On the Debate Between Single- and Multi-Carrier
Loureiro, Pedro A. Loureiro
; Lorences-Riesgo, A.
; Mumtaz, S.
; Neves, M. S.
; Gac, D.
; Nguyen, T.
;
Monteiro, P.
; Charlet, G.
; Dris, S.
;
Guiomar, F. P.
WSS Filtering Penalties with Bandwidth-Variable Transceivers: On the Debate Between Single- and Multi-Carrier, Proc European Conference on Optical Communication ECOC, Basel, Switzerland, Vol. , pp. - , September, 2022.
Digital Object Identifier: We1C.3
Abstract
We experimentally demonstrate that symbol-rate optimization (SRO) provides nonlinear gains in multi-carrier systems, even with PCS modulation and realistic DSP. Optimized carrier phase recovery is crucial to achieving 0.2 dB gain for 1400 km 800G transmission, out of the ∼0.7 dB theoretical maximum gain we measured.
