Toshiba Tests Qhia QKDs tuaj yeem koom ua ke rau hauv thaj av uas muaj kev sib txuas lus kho qhov muag

Toshiba Europe yog ib qho ntawm cov pioneers ntawm quantum key faib (QKD) technology. Nws qhov kev ntsuam xyuas zaum kawg tau pom tias kev siv thev naus laus zis ntawm kev sib txuas siab ceev ze li 200 mais ntev yog qhov ua tau zoo.
Hauv nws qhov kev sim nrog tus neeg teb xov tooj Orange, Toshiba Europe tau ntsuas qhov ua tau zoo ntawm QKD system siv 1310 nm wavelength kis tau tus mob, co-propagated nrog ib tug ntom wavelength division multiplexing (DWDM) cov ntaub ntawv channel siv ze li ntawm 1550 nm kis tau tus mob.
Raws li lawv cov ntaub ntawv tshawb fawb luam tawm ua ntej lub hli no hauv Phau Ntawv Xov Xwm ntawm Lightwave Technology, nws muaj peev xwm xa QKD-tiv thaiv 100 Gigabit Ethernet cov ntaub ntawv ntws nrog 400 Gb / s cov ntaub ntawv raws.
Andrew Shields ntawm Toshiba Europe thiab cov npoj yaig tau hais tias, "Kev zais zais tau tshwm sim thaum sib koom ua ke." Lawv tau siv peb lub QKD thiab ob qhov kev ntseeg siab los xyuas kom muaj kev sib txuas ntawm 184-km.
Xyoo tas los, Toshiba thiab Txiv kab ntxwv tau qhia tias QKD thev naus laus zis tuaj yeem siv rau ntawm cov fiber ntau network uas twb muaj lawm nrog rau cov ntaub ntawv qub qub uas twb muaj lawm, thiab cov kev sim tshiab tau nrhiav los ntsuas nws qhov tsim nyog rau ntau cov qauv tsim uas ua raws li kev siv fiber ntau tam sim no.
Shields, tus thawj coj ntawm Toshiba's Quantum Technologies division tau hais tias "Peb tau pom ntau lub koom haum los ntawm tsuas yog ntsuas qhov kev hem thawj los ntawm quantum suav los ua kev tiv thaiv lawv tus kheej," said Shields, tus thawj coj ntawm Toshiba's Quantum Technologies division, " ntawm cov tes hauj lwm tiag tiag uas yog rau cov ntawv thov hauv ntiaj teb tiag tiag yam tsis muaj kev nqis peev ntxiv hauv kev tsim kho tshiab. "
Laurent Leboucher, CTO thiab SVP ntawm Orange Innovation Networks, ntxiv, "Cov ntaub ntawv kev ruaj ntseg yog lub hauv paus ntawm Orange cov kev pabcuam, thiab peb zoo siab rau qhov ua tiav ntawm peb txoj kev koom tes nrog Toshiba. Peb (kawg) ua haujlwm qhia tau hais tias QKD tuaj yeem ua ke rau hauv cov uas twb muaj lawm. regional network infrastructure, cim kev nce qib tseem ceeb hauv quantum kev sib txuas lus ruaj ntseg. "
Hauv kev sim tsis ntev los no, Toshiba thiab Orange tau sim ob hom QKD thev naus laus zis hauv qhov kawg-rau-kawg. Ob 67-kilometer seem siv Toshiba txoj kev siv tshuab ntev ntev, uas muaj ob lub fibers kho qhov muag los nqa quantum thiab classical signals, thaum ib qho 50-kilometer txuas siv lub tuam txhab multiplexed QKD thev naus laus zis, uas quantum channels yog co -propagated nrog cov ntaub ntawv raws.
Lub tuam txhab, uas tau ua ntej ntawm QKD txoj kev loj hlob rau ntau tshaj ob xyoo lawm, hais tias cov ntawv luam tawm nrog Txiv kab ntxwv muab cov txiaj ntsig kev sim thiab cov kev txiav txim siab tseem ceeb rau txhua lub koom haum npaj los siv QKD encryption.
Kev ua haujlwm qhia tau hais tias yuav ua li cas high-speed quantum ruaj ntseg cov ntaub ntawv encryption tuaj yeem xa mus rau ntau qhov sib txuas fiber ntau thiab sib koom ua ke nrog cov kev pabcuam cov ntaub ntawv siv hom kev sib txuas hauv network feem ntau siv hauv thaj chaw metro.
Toshiba Europe kuj tau ua haujlwm ze nrog cov tuam txhab xws li BT, tuam txhab nyiaj loj HSBC thiab SoftBank los ua kom pom kev ruaj ntseg thiab siv tau zoo ntawm nws cov QKD system, thiab thaum lub Cuaj Hlis 2023 Toshiba tau qhib nws qhov tshiab £ 20 lab Quantum Technology Center hauv Cambridge.