Brett Wilson received his Ph.D. in 1975 from the University of Manchester and is now the Senior Lecturer at the University of Manchester Institute of Science and Technology (UMIST) where he leads the Fibre Communications Research Group. His communications interests are mainly in high-speed analogue fibre systems, fibre receiver design and modulation techniques, but Wilson is also well known for his work in the field of current-mode circuit design. He has published over 70 papers in these two areas. Zabih Ghassemlooy obtained his Ph.D. from UMIST in 1987 for work on analogue fibre systems employing multiplexed pulse time modulation for TV signal transmission. He in now a Principal Lecturer and Subject Leader for Communication Engineering and Signal Processing at Sheffield Hallam University and heads the Optical Fibre Communication Systems research group with interests in high-speed fibre systems and modulation techniques as well as optical and molecular sensors. Izzat Darwazeh graduated with a Ph.D. from UMIST in 1991 for his studies on high-speed fibre receiver designs and FDDI systems before moving to the University of Wales at Bangor, working on multigigahertz fibre systems and MMIC design techniques. He now lectures at UMIST where he is a member of both the Fibre Communications and the Solid State Electronics research groups, working on high-speed optical fibre systems, advanced MMIC and OEIC optical receiver structures and optical fibre networks.