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Comparison of Polarization-Switched QPSK and Modified Phase Conjugated Twin Waves in Long-Haul Links

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Abstract

We improve the encoding/decoding of polarization-switched QPSK (PS-QPSK) to enhance the performance, and show that QPSK-based modified phase-conjugated twin wave is similar to the improved PS-QPSK but provides additional gain via fiber nonlinearity mitigation.

© 2016 Optical Society of America

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