ROADM system for space division multiplexing with spatial superchannels. - Mark D. Feuer; Lynn E. Nelson; Kazi Abedin; X. Zhou; Thierry F. Taunay; John Fini; Benyuan Zhu; Rejoy Isaac; R. Harel; G. Cohen; Dan M. Marom (OFC/NFOEC, 2013)