- 319 Tb/s long-haul transmission of wideband (>120 nm) S, C and L-bands signal using 552 PDM-16QAM, wavelength-division multiplexed channels in a 4-core optical fiber
- Long-distance transmission over 3,001 km enabled by adoption of both erbium and thulium doped-fiber amplifiers and distributed Raman amplification
- Demonstration shows potential of SDM fibers with standard-cladding diameter and compatibility with existing cabling technologies for near-term adoption of high-throughput SDM fiber systems
Japan’s National Institute of Information and Communications (NICT) has reportedly set a new world record for data transfer over the fastest internet at a speed of 319 terabytes per second. This means one can download 57,000 full length movies in 1 second, the report said. This is almost 24 million times faster than average internet speed in India.
The researchers have demonstrated using advanced fibre optic technology with a 4-core optical fibre of standard outer diameter of 0.125 mm, breaking the previous record of 178 Tb/s set by engineers in Britain a year ago. The researchers, lead by Benjamin J. Puttnam, constructed a transmission system that makes full use of wavelength division multiplexing technology by combining different amplifier technologies, to achieve a transmission demonstration with date-rate of 319 terabits per second, over a distance of 3,001 km. Using a common comparison metric of optical fiber transmission the data-rate and distance produce of 957 petabits per second x km, is a world record for optical fibers with standard outer diameter, the report stated.
“The 4-core MCF with standard cladding diameter is attractive for early adoption of SDM fibers in high-throughput, long-distance links, since it is compatible with conventional cable infrastructure and expected to have mechanical reliability comparable to single-mode fibers,” reads the research paper.
NICT has noted that it was crucial to demonstrate how new fibers can meet the demand of explosive increase from new data services beyond 5G. The institute further hopes that the result from the latest internet speed test will help the realisation of new communication systems that can support the new bandwidth hungry services.
“We will continue to develop wide-band, long-distance transmission systems and explore how to further increase transmission capacity of low-core-count multi-core fibers and other novel SDM fibers. Further, will work to extend the transmission range to trans-oceanic distances,” NICT said.
The research paper was published at the International Conference on Optical Fiber Communication which was held virtually from June 6-11.