Simultaneous Monitoring of CD, DGD and OSNR from FIR Filter Coefficients in Coherent Receivers

Conference: Photonische Netze - 9. ITG-Fachtagung
04/28/2008 - 04/29/2008 at Leipzig, Germany

Proceedings: Photonische Netze

Pages: 3Language: englishTyp: PDF

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Hauske, F. N.; Kuschnerov, M.; Piyawanno, K.; Lankl, B. (University of the Federal Armed Forces, Munich, EIT-3, D-85577 Neubiberg)
Alfiad, M.; Waardt, H. de (COBRA institute, TU/e, Den Dolech 2, 5600 MB Eindhoven, The Netherlands)
Wuth, T.; Man, E. De; Schmidt, E.-D.; Spinnler, B. (Nokia Siemens Networks GmbH & Co. KG, Hofmannstr. 51, D-81379, Munich, Germany)

We simultaneously estimate the values of residual CD, DGD and OSNR from FIR filter coefficients in coherent receivers with digital equalization. Precise estimations over a wide range are demonstrated on measured 111Gbit/s CP-QPSK data with off-line processing on a PC.