The backbone of the whole internet and telephone net Are glass fibers. To double the transmission capacity for every wavelength, two light signals with orthogonal polarization directions are transmitted. Professor Noé and his team Optical Communication and High-Frequency firstly have built up such a polarization multiplex data transmission system and made practicable. The system transmits data within two polarization channels with 40 Gbit each, together 80 Gbit/s or 80 000 000 000 bit per second over an optical fiber with a length of 212 km, - much further than otherwise possible. The experiment has been published by the European Conference of Optivasl Communication in Amsterdam as “Postdeadline Paper”.