Author Affiliations

J. J. G. M. van der Tol,^1,# J. W. Pedersen,^# F. Hakimzadeh,^# E. G. Metaal,^# J. J. W. van Gaalen,^# Y. S. Oei,^#,* and F. H. Groen^#,**

^#Royal PTT Nederland N. V., KPN Research, P. O. Box 421, 2260 AK Leidschendam, The Netherlands

^*Department of Electrical Engineering, Delft University of Technology, Delft, The Netherlands

^**Department of Applied Physics, Delft University of Technology, Delft, The Netherlands

¹ J.J.G.M.vanderTol@research.kpn.com