Zarris G, Parmigiani F, Hugues-Salas E, Weerasuriya R, Hillerkuss D, Gonzalez NA, Spyropoulou M, Vorreau P, Morais R, Ibrahim SK, et al. Field trial of WDM-OTDM transmultiplexing employing photonic switch fabric-based buffer-less bit-interleaved data grooming and all-optical regeneration. In: Conference on Optical Fiber Communication, Technical Digest Series. ; 2009.