Cov kws tshawb fawb ntawm National Institute of Information thiab Communications (NICT) hauv Tokyo tsis ntev los no tau tsoo lub ntiaj teb cov ntaub ntawv hloov pauv ceev, nce mus txog 319 terabits ib ob.
Pab neeg ntawm cov kws tshawb fawb thiab cov kws tshaj lij tau coj los ntawm Benjamin Puttnam ntawm NICT, lub koom haum nrog keeb kwm ntawm cov ntaub ntawv hloov pauv. Qhov tseeb, NICT kis 172 terabits tshaj 2,000 mais hauv lub Plaub Hlis 2020, teeb tsa lub ntiaj teb cov ntaub ntawv thaum lub sijhawm.
Muab qee qhov kev xav, cov ntaub ntawv ceev ceev kawg tuaj yeem tso cai rau ib tus neeg hloov 10, 000 cov yeeb yaj kiab siab, ntawm 4 gigabytes txhua, nyob rau ib pliag.
Txhawm rau ua tiav qhov kev ua tau zoo no, pab pawg tau muab plaub-core optical fiber ntau txuas thiab xa cov ntaub ntawv mus rau plaub lub raj kho qhov muag. Cov ntaub ntawv raug xa mus siv "wavelength-division multiplexing."
Cov cuab yeej tshwj xeeb no siv lub teeb ntawm cov ntaub ntawv thiab faib nws mus rau 552 tus neeg raws. Cov ntaub ntawv yog tom qab ntawd xa mus rau plaub cores hla lub fiber ntau optic cable uas yog 1,864 mais ntev (3,000 mais). Thiab kom paub tseeb tias lub teeb liab lub zog tsis poob qis, muaj amplifiers muab tso rau ntawm txhua txhua 43.5 mais (70 kilometers) los txhawb nws.
Cov raj kho qhov muag fiber ntau tau ua lub luag haujlwm tseem ceeb hauv kev rhuav tshem cov ntaub ntawv, vim nws txo cov teeb liab cuam tshuam rau qhov ntev. Feem ntau, tsuas yog siv ib lub raj xwb. Cov amplifiers kuj yog tshwj xeeb, raws li lawv suav nrog cov cim ntawm lub ntiaj teb tsis tshua muaj, xws li thulium thiab erbium, txhawm rau txhawb lub teeb liab lub zog ntxiv.
Raws li pab pawg, txhua tus channel tau xa cov ntaub ntawv nyob ib puag ncig 145 gigabytes ib ob rau txhua tus tub ntxhais. Nrog 552 raws, cov kws tshawb fawb tau ncav cuag qhov kev tshaj tawm 319 terabit ceev.
Lub hom phiaj ntawm qhov kev sim no yog txhawm rau txuas ntxiv pab pawg tshawb fawb hauv cov ntaub ntawv sib kis mus ntev. Cov ntaub ntawv thiab kev tshawb pom ntawm cov kev sim no yuav mus npaj lub ntiaj teb rau lub sijhawm tom qab 5G network.
