KLAUS GROBE, Dr.-Ing, is Principal Engineer at ADVA Optical Networking SE. He is a member of the German VDE ITG Photonic Networks working group, the IEEE Photonics Society, and the OFC 2010 Subcommittee on Transmission Subsystems and Network Elements.MICHAEL EISELT, Dr.-Ing, is Director of Advanced Technology at ADVA Optical Networking SE. He was Principal Technical Staff Member at the Lightwave Networks Research Department of AT&T Labs and the Principal Architect at Celion Networks.