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A Simple and High-Performance Method for Combining Soft-Decision FEC with Differential Encoding in 100 Gbps Dual-Polarization QPSK System

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Abstract

By a joint design of FEC and modulation, we demonstrate that it is possible to associate strong SD-FEC and differentially-encoded QPSK systems with negligible coding gain penalty and minor modifications in existing transceivers. The resulting system is robust to cycle slips.

© 2014 Optical Society of America

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