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Updated: Jul 4, 2026

Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
Coherent optical communication: towards realtime systems at 40 Gbit/s and beyond
T Pfau1, S Hoffmann, O Adamczyk
1University of Paderborn, EIM-E, Warburger Str. 100, D-33098 Paderborn, Germany.
Abstract:
Coherent optical communication systems promise superior performance, but their realization in real time also poses big technical challenges. After an introduction the potential of coherent optical transmission systems is shown as manifested in offline experiments. Then we present key components that are necessary to realize these systems in real time. We review recent achievements in realtime coherent communication and finally present the results of a realtime QPSK transmission system with a 3x3 coupler in the receiver. The achieved BER at a data rate of 1.4 Gbit/s is well below the FEC threshold.
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