Experimental Verification of an Analytical Model of Filtering Impact on Coherent Digital Subcarriers Systems. - Pablo Torres-Ferrera; Giuseppe Parisi; Jacqueline Sime; C. Castro; Roberto Gaudino; Giuseppe Rizzelli; F. Pevere; M. Sezer Erkilinç; Thomas Duthel; Chris Fludger; Antonio Napoli (OFC, 2025)