@inproceedingsEl-Darawy_Pfau_Woerdehoff_Koch_Hoffmann_Peveling_Porrmann_Noé_2008, title=Realtime 40 krad/s Polarization Tracking with 6 dB PDL in Digital Synchronous Polarization-Multiplexed QPSK Receiver, booktitle=2008 34TH EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION (ECOC), author=El-Darawy, M. and Pfau, T. and Woerdehoff, C. and Koch, B. and Hoffmann, S. and Peveling, R. and Porrmann, M. and Noé, Reinhold, year=2008