Researchers from china, the US and the Netherlands have developed a new fiber optic technology capable of transferring 255 terabits data per second down a single strand of glass fiber over 1km. Their research work is published in the latest edition of the Journal Nature which explains how they developed such a high speed over a single fiber strand.
Researchers claim that this type of optical fiber allows 21 times more bandwidth than currently available in communication networks. Such speeds are enough to transfer a 1GB movie in 0.03 milliseconds, or a 1TB file in just 0.03 seconds.
The researchers were able to achieve such speed through a seven-core fiber which is the same configuration that was recently used by Danish researchers to claim 43 Tbps speed record. In this case, researchers have used a glass fiber with seven spatial paths, arranged in a hexagon.
In the record-setting demonstration, a single fiber was able to hit 5.1 Tbps using one wavelength, and then WDM to squeeze 50 wavelengths down the seven cores, a gross transmission throughput of 255 Tbps over a 1km fiber link is achieved.
Eventually multi-core optical fibers will most likely replace the current single-mode fibers – but considering such an upgrade would require replacement of millions of miles of cabling.