pers and holds 12 patents. Anagnostis Hadjifotiou, B.Sc., M.Sc., Ph.D. Visiting Professor Anagnostis Hadjifotiou graduated from Southampton University in 1969 with a B.Sc. degree in electronic science with final-year options on communications, semiconductor physics, electronic devices, microwaves, and quantum electronics. He received his M.Sc. in 1970 from Manchester University in control systems, specializing in optimal control, stochastic pro- cesses, stochastic control, and space control systems. In 1974 he was awarded a Ph.D. from Southampton University for work on digital-signal processing for target extraction in radars. Anagnostis joined the Nortel Research Laboratories in Harlow, England (then Standard Telecommunications Laboratories) in 1984 and worked on nonlinear electronic circuits, computer-aided circuit design, optical systems (submarine, terrestrial, and free space), optical technologies, device and system simulation, and nonlinear optics. From 2000 until his retirement from Nortel in 2004, he was responsible for research on optical communica- tions and optical technologies. He has also been a visiting professor at Essex University and University College London and a lecturer at a number of U.K. universities. Anagnostis is a fellow of the Royal Academy of Engineering, a fellow of the IET, a chartered engineer, and a member of the IEEE and the OSA. He has 104 publications to his credit. Goff Hill, B.Sc., MIET GTel Consultancy Ltd. Goff Hill is the managing director of GTel Consultancy, which provides advice on broadband and core transport networks and is active in supporting Europe's Framework Program research. Globally recognized as a pioneer of "optical network" technology, Goff has more than 40 years' experience in telecommunications, including 17 years in optical telecommu- nications as a technical group leader and project manager with BT and 2 years as a chief network architect with ilotron and later with Altamar Networks. He has been a special editor for both IEEE Communications Magazine and I