Japanese researchers, led by the National Institute of Information and Communications Technology, have achieved a 402 Tb/s data transfer speed using existing fiber optic cables.
This was accomplished by tapping into unused wavelengths within the low-loss transmission window of the cables.
The team presented their findings at the Optical Fiber Communication Conference in San Diego, representing a significant leap in data transmission capabilities.
To achieve this record-breaking speed, the team explored previously untapped frequency ranges within the low-loss transmission window of standard fiber optic cables. These cables typically operate within a limited spectrum of frequencies optimized for minimal signal loss over long distances.
The project involved developing a system that covers the entire low-loss spectrum by employing various advanced signal amplification techniques.
The researchers believe their approach can help deliver high-speed ‘Beyond 5G’ services, enhancing data rates and extending the lifespan of existing infrastructure.
However, real-world implementation would require costly upgrades to amplifiers and transmission equipment.
Nonetheless, the successful demonstration underscores the potential of fiber optics to support increasingly high-speed data transmission demands.
