Single-carrier Over 200-Gbit/s and 200-m Transmission in 300-GHz Band

This paper presents photonics-based wireless transmitter and receiver systems using ultralow-phase-noise optical signal sources in 300-GHz band. Highest single-carrier data rates at 15-mm distance are 252 Gbit/s with 64QAM and 120 Gbit/s with 256QAM under HD-FEC limit. By using 60-dBi antennas, 220-Gbit/s transmission is successfully demonstrated over 214-m distance, which is the largest distance-rate product for 300-GHz-band single carrier wireless link to the best of our knowledge.