28 GBd PAM-8 transmission over a 100 nm range using an InP-Si3N4 based integrated dual tunable laser module - Dass, Devika; Troncoso Costas, Marcos; Barry, Liam P.; O'duill, Sean; Roeloffzen, Chris G. H.; Geuzebroek, Douwe; Carpintero Del Barrio, Guillermo; Guzman Martinez, Robinson Cruzoe; Browning, Colm (OPTICS EXPRESS, 2021)