Ilias Iliadis Nikolaos Chrysos Cyriel Minkenberg Performance evaluation of the Data Vortex photonic switch. 20-35 2007 25 IEEE Journal on Selected Areas in Communications S-6 http://dx.doi.org/10.1109/JSAC-OCN.2007.021505 db/journals/jsac/jsac25.html#IliadisCM07