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We demonstrate 100Gb/s 8D coded modulation transmission over 9,750 km with record high power efficiency as defined by the ratio of capacity-distance product to the total amplifier output power.
We transmit 30.58 Tb/s data (294×104 Gb/s) over 7,230 km in 40 nm bandwidth with 6.1 b/s/Hz spectral efficiency. We use PDM half-4D-16QAM coded modulation to achieve the highest reported capacity-distance product of 221 Pb/s·km.
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