Lossless Silicon Photonic ROADM based on a Si3N4 platform and a Monolithically Integrated Erbium Doped Amplifier. - Christos Vagionas; Apostolos Tsakyridis; Themistoklis Chrysostomidis; Ioannis Roumpos; Konstantinos Fotiadis 001; Athanasios Manolis; Jinfeng Mu; Meindert Dijkstra; Sonia M. Garcia-Blanco; Ruud M. Oldenbeuving; Paul W. L. van Dijk; Chris G. H. Roeloffzen; et al. (OFC, 2021)