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Air Fiber Shatters Speed Records: 51.3 Tb/s Achieved
5 Jul
Summary
- Hollow-core fiber transmitted 51.3 Tb/s over 206.5 km without regeneration.
- Researchers achieved 1.2 Tb/s per wavelength, setting new field deployment records.
- This breakthrough supports accelerating AI infrastructure demands for faster data.
Chinese fiber manufacturer YOFC has successfully completed a trial of its hollow-core fiber technology, achieving a record-breaking 51.3 terabits per second (Tb/s) transmission over a distance of 206.5 kilometers without any signal regeneration. This demonstration, conducted in collaboration with China Telecom and Dekoli on a live network, also saw researchers achieve an impressive 1.2 Tb/s per wavelength.
Unlike traditional optical fibers that use glass cores, hollow-core fiber transmits light through air-filled channels. This unique design allows light to travel faster and significantly reduces optical distortions, leading to lower latency and improved transmission speeds. The trial notably used standard erbium-doped fiber amplifiers and employed adaptive allocation techniques to manage channel rates and optical power, overcoming historical challenges with signal attenuation in such systems.
This breakthrough arrives as artificial intelligence applications drive an exponential increase in data movement, creating new networking bottlenecks. The enhanced speed and reduced latency offered by hollow-core fiber could enable data centers to be located farther apart without impacting AI training and inference performance. While commercial deployments still face hurdles, this trial represents a significant step towards overcoming bandwidth limitations.
