Optical fibers nyob rau hauv SEA-ME-WE 5 submarine cable txuas rau Southeast Asia, Middle East thiab Western Europe. Yees duab: Boris Horvat / AFP ntawm Getty Images
Japanese NEC thiab nws cov koom tes OCC Corporation kev txhim kho thiab kev sim ntawm underwater repeaters thiab kho qhov muag cable nrog 20 khub ntawm optical fibers (40 fibers). Nov yog daim ntawv teev ntiaj teb tshiab.
Qhov kev ua tiav dhau los kuj tau koom nrog NEC - ib lub xov tooj nrog 16 khub, thiab tsis ntev NEC tau cog lus tias yuav tso cov rov ua dua thiab cov cables "nrog 24 khub lossis ntau dua."
NEC tau ua tiav qhov tseem ceeb no nrog tsuas yog kev hloov pauv me me rau nws qhov kev ua pov thawj rov qab thiab cov qauv siv cable, cov xov xwm tshaj tawm tau hais. Qhov no yog ua los ntawm optimizing cov tseem ceeb repeater Cheebtsam, raws li zoo raws li ua pov thawj hais tias cov uas twb muaj lawm cable tsim tau yooj yim haum ntau fibers.
NEC submarine cable nrog ntau txheej ntawm kev txhawb nqa
20-fiber-pair repeaters txuas ntxiv siv plaub lub twj tso kua mis sib koom thev naus laus zis uas tau tsim los ntawm NEC hauv xyoo 2010 los muab kev ua haujlwm siab kho qhov muag thiab hluav taws xob.
NEC repeaters nrog quad signal amplifiers nyob ntawm OCC cog hauv Kitakyushu (Nyiv). Cov repeaters no tau tsim los rau Google txoj hauv qab FASTER txoj kev hla dej hiav txwv Atlantic. Photo taken Lub Xya hli ntuj 9, 2015
Loj ntau lawm ntawm repeaters thiab kho qhov muag cable ntawm lub hom tshiab twb pib.
Nws ntseeg tau tias cov kab hluav taws xob siab tshaj plaws ntawm kev sib txuas lus niaj hnub no yog Google - cov no yog Equiano thiab Dunant raws, uas lub tuam txhab tam sim no tso ntawm US sab hnub tuaj ntug dej hiav txwv thiab Fabkis, nrog rau ntawm Portugal thiab South Africa, feem. Cov kab no muaj 12 khub ntawm optical fibers.
Fiber optic cable teeb tsim los ntawm Subcom. Yees duab: Brian Smith / Subcom
Qhov kev sib tw ntawm 12-pair Dunant tau hais ntawm 250 Tbit / s. Google twb tau tshaj tawm txoj kab nrog 24 khub ntawm optical fibers. Cov qauv cable tshiab los ntawm Google thiab Subcom siv ntom ntom wavelength division multiplexing thev naus laus zis, tso cai rau cov ntaub ntawv xa mus ntawm ntau tshaj 100 wavelengths tshaj ib qho fiber ntau.
Winding optical fiber mus rau ib lub reel hauv tuav ntawm Subcom marine cable-ntev nkoj. Yees duab: Bill Gallery/Subcom
Submarine cable tso yog ib qho kev lag luam loj hlob sai heev. Raws li tsab ntawv ceeb toom , cov tuam txhab loj tshaj plaws ntawm submarine cables tam sim no yog cov tuam txhab hauv qab no:
- ASN
- TE Subcom
- NEC
- prismian
- Nexans
- Hengtong
- Zhongtian
Reliance class cable txheej los ntawm Subcom. Yees duab: Subcom
Telecommunications giants NEC, TE Subcom thiab Alcatel-Lucent tsis ntev los no tau los nyob rau hauv kev nyuaj siab los ntawm loj IT tuam txhab uas muag xws li Google, Facebook thiab Microsoft, uas xav mus koom nyob rau hauv ob qho tib si txoj kev loj hlob ntawm cables thiab tso cov kev sib txuas lus undersea channel.
Tau qhov twg los: www.hab.com