Henry H. Radamson received an M.Sc. degree in physics and the Ph.D. degree in semiconductor materials from Linköping University in Sweden, in 1989 and 1996, respectively. In 1997, he joined the Royal Institute of Technology in Stockholm as a senior scientist, where he has been an Associate Professor since 2001.Lars Thylén received the M. Sc. degree in Electrical Engineering and the Ph. D. degree in Applied Physics in 1972 and 1982, respectively, both from the Royal Institute of Technology (KTH) in Stockholm. From 1982 to 1992 he was employed by Ericsson. Since 1992, he is a professor of Photonics and Microwave Engineering at the school of Information and Communications Technology, KTH, Stockholm, heading the Laboratory of Photonics and Microwave Engineering.