Researchers in Japan have demonstrated an internet speed of 319 terabits per second, setting a world record. To achieve the record speed, the researchers constructed a recirculating transmission loop experimental set-up by combining two kinds of rare-earth-doped fiber amplifiers. The combination of erbium and thulium doped-fiber amplifiers and distributed Raman amplification enabled a long-distance transmission over 3,001 km. NICT stressed that it was crucial to demonstrate how new fibers can meet the demand of apparent “explosive increase” from new data services. The research paper was published at the International Conference on Optical Fiber Communication which was held virtually from June 6-11.

Source: Hindustan Times July 18, 2021 16:18 UTC