Ultra-Fast Adaptive Digital Polarization Control in a Realtime Coherent Polarization-Multiplexed QPSK Receiver

A digital polarization control system integrated in a 2.8 Gbit/s realtime polarization-multiplexed coherent QPSK system compensates for endless polarization changes having a maximum gradient of 3.5 krad/s (12 krad/s) with 1 dB (3.9 dB) loss in receiver sensitivity.

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Bibliographische Detailangaben
Hauptverfasser:	Pfau, T, Wordehoff, C, Peveling, R, Ibrahim, S K, Hoffmann, S, Adamczyk, O, Bhandare, S, Porrmann, M, Noe, R
Format:	Tagungsbericht
Sprache:	eng
Schlagworte:	Adaptive control Control systems Digital control Optical fiber communication Optical fiber polarization Optical polarization Optical receivers Optical retarders Programmable control Quadrature phase shift keying
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Beschreibung
Zusammenfassung:	A digital polarization control system integrated in a 2.8 Gbit/s realtime polarization-multiplexed coherent QPSK system compensates for endless polarization changes having a maximum gradient of 3.5 krad/s (12 krad/s) with 1 dB (3.9 dB) loss in receiver sensitivity.
DOI:	10.1109/OFC.2008.4528638