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Novel Ultra Wide-Range Frequency Offset Estimation for Digital Coherent Optical Receiver

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Abstract

We propose and experimentally demonstrate a novel, dual-stage frequency offset estimator and achieve the widest range of ±0.5 times the system symbol rate for the first time in a 42.8-Gbit/s coherent PolMux QPSK receiver.

© 2010 IEEE Communications Society, IEEE Photonics Society, OSA, Telcordia

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