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We reported the transmission of 8×520 Gbit/s PDM-16QAM-OFDM over SMF and EDFA-only link. It is the first time to realize single band/λ 400G net rate OFDM signal transmission.
We demonstrate the generation and detection of single-carrier electronic time division multiplexing 400 GE signal based on 120-GBd PDM PAM-4 signal. The signal performance is significantly improved by using our novel pre-equalization scheme. A line rate of 480-Gb/s is achieved, which enables 20% forward-error correction overhead to keep the record 400-Gb/s net information rate.
We successfully transmitted 100-GHz-grid, 8 channels single-carrier 515.2-Gb/s super-Nyquist signal over 2800-km SMF-28 with EDFA-only amplification. Record all-ETDM-based 136-Gbaud PDM-QPSK is also generated and coherently detected.
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