Dab tsi yog wavelength faib multipxing (WDM)?
WDM yog lub tshuab fiber ntau dua uas muaj ntau cov ntaub ntawv kis tau los ntawm kev sib kis ntawm cov ntsiab lus tam sim no, thiab txiav cov qauv bandwidth, thiab txiav cov ntsiab lus tshiab, thiab txiav cov ntsiab lus tshiab, thiab txiav cov ntsiab lus tshiab, thiab cov ntawv thov.
Lub ntsiab cai ntawmWDM
Tus txheej txheem tseem ceeb ntawm WDM yog siv cov xim sib txawv (wavelengths) ntawm lub teeb ci ci tuaj yeem xa cov ntaub ntawv ntawm ib qho wavelengths {}}
Hom ntawmWDM
Muaj ob hom wavelength division multiplexing: coarse wavelength divenength (CWDM) thiab ntom wavelength divenength (DWDM) .
1. CWDM siv ib qho kev sib txuas lus dav dav thiab cov khoom lag luam tsis yooj yim thiab tsis muaj nqi hauv nruab nrab {2.
2.} dewdm yog cov ntaub ntawv siab tshaj plaws ntawm waverengths thiab siv cov ntsiab lus zoo tshaj plaws hauv kev sib tw thiab rov qab cov ntsiab lus no.
Qhov Zoo ntawm WDM
WDM muaj ntau qhov zoo dua cov kev sib txuas lus ib txwm muaj, suav nrog:
1.Muaj Peev Xwm:Los ntawm multeexing ntau wavelengths tuaj yeem txhim kho kev kis tus muaj peev xwm ntawm kho qhov muag tau ua kom tau raws li cov ntaub ntawv ntawm cov ntaub ntawv loj .
2.Tus nqi pib tsim nyog:Hloov chaw ntawm cov kab xov xwm fiber ntau, siv WDM nrog txoj kev muaj fiber ntau yog txoj hauv kev siv tau tus nqi txuas ntxiv rau kev nthuav network muaj peev xwm.
3.Yooj taus thiab thev taus:WDM cov tshuab tau yooj yim hloov kho thiab nthuav dav, thiab txuas ntxiv rau kev hloov kho kom haum rau kev lag luam yav tom ntej xav tau {}}
4.Txhim Kho Network Reliability:Los ntawm kev hloov pauv sib txawv dhau wavelengths, WDM suav nrog cov kev pabcuam sib cais yog tias yog ib qho kev pabcuam tsis ua haujlwm, lwm yam kev pabcuam tuaj yeem ua haujlwm txuas ntxiv ua haujlwm .
Daim ntawv thov ntawmWDM
WDM feem ntau siv hauv kev sib txuas lus, cov chaw zov me nyuam, thiab cov ntaub ntawv sib txuas lus hauv internet, nws yog qhov xav tau tias kev siv WDM yuav txuas ntxiv mus rau hauv yav tom ntej .
Hauv ntej, WDM, raws li cov kev sib txuas lus siv tshuab hluav taws xob tsis zoo, tab sis kuj tsis yog cov teeb meem ntawm kev sib txuas lus zoo niaj hnub no.
