High Radix SOA-Based Lossless Optical Switch Prototyping for 25 GBaud PAM4 Transmission in Modern Intra-datacenter Applications. - Hassan Rahbardar Mojaver; Shanglin Li; Valery I. Tolstikhin; Kin-Wai Leong; Odile Liboiron-Ladouceur (OFC, 2021)