Transmission of 400G dual-carrier DP-16QAM and multi-carrier DP-QPSK signals over regional and long-haul distances with span lengths greater than 200 km

Abstract

We demonstrate transmission of 400-Gb/s Nyquist-rate dual-carrier DP-16QAM and multi-carrier DP-QPSK signals with 37.5-GHz carrier spacing. The transmission system with span length greater than 200-km SSMF with 44-dB loss and standard EDFA/RA amplification is employed. 

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