Ithimba labacwaningi abavela kwi-Network Research Institute ye-National Institute of Information and Communications Technology (NICT, eJapane) lifinyelele irekhodi elisha lomhlaba le-bandwidth ku-single i-fiber optics ububanzi obujwayelekile.
Abacwaningi bathole i-bandwidth engaba ngu-1.53 petabits ngomzuzwana ngokufaka ulwazi kuma-frequency okukhanya angu-55 ahlukene (indlela eyaziwa ngokuthi i-multiplexing). Lokho kwanele i-bandwidth ukuthwala yonke ithrafikhi ye-inthanethi yomhlaba (elinganiselwa ngaphansi kwe-petabit eyodwa ngomzuzwana) ngekhebula elilodwa le-fiber optic. Lokho kuhlukile kakhulu ekuxhumaneni kwe-gigabit abantu abavamile abakwazi ukufinyelela kukho (ezimweni ezinhle kakhulu): ukuze kube sobala, kukhulu ngokuphindwe kasigidi.
Lobu buchwepheshe busebenza ngokusebenzisa amaza okukhanya ahlukene atholakala kulo lonke i-spectrum. Njengoba “umbala” ngamunye ngaphakathi kwe-spectrum (yokukhanya okubonakalayo nokungabonakali) unomvamisa wawo, ohlukile kuzo zonke ezinye, ungenziwa ukuthi uthwale umfudlana wawo wolwazi ozimele. Abacwaningi bathole ukusebenza kahle kwe-spectral okungu-332 bits/s/Hz (ama-bits ngomzuzwana nge-Hz). Lokho kusebenza kahle ngokuphindwe kathathu kunomzamo wabo wangaphambilini omuhle kakhulu, ngo-2019, owathola ukusebenza kahle kwe-spectral okungu-105 bits/s/Hz.
Isikhathi sokuthunyelwe: Novemba-24-2022
