Hollow-core fiber field test hits 1.2 Tb/s per wavelength, 51.3 Tb/s total

Chinese researchers demonstrated the world’s first field trial of a hollow-core fiber transmission system capable of 1.2 Tb/s per wavelength, achieving a total of 51.3 Tb/s over roughly 128 miles without repeaters. The advance uses adaptive per-wavelength rate control, flexible channel power allocation, and a cascaded high-power amplifier design with up to 33.5 dBm output, along with safeguards to monitor stability and prevent failures, underscoring hollow-core fiber’s potential for faster, lower-latency backbone networks.