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Generation and FEC-Decoding of a 231.5-Gb/s PDM-OFDM Signal with 256-Iterative-Polar-Modulation Achieving 11.15-b/s/Hz Intrachannel Spectral Efficiency and 800-km Reach

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Abstract

A 231.5-Gb/s PDM-OFDM signal with 256-iterative-polar-modulation, outperforming 256-QAM by 1.2 dB in required OSNR after soft-FEC decoding, is generated, FEC-decoded, and transmitted over a record distance of 800 km with 11.15-b/s/Hz intrachannel spectral efficiency.

© 2012 Optical Society of America

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