PON thev naus laus zis yeej ib txwm muaj peev xwm rov tsim kho nws tus kheej thiab hloov mus rau kev xav tau ntawm kev lag luam tshiab.Los ntawm cov ntaub ntawv ceev mus rau dual tus nqi me ntsis thiab ntau yam lambdas, PON ib txwm yog "tus phab ej" ntawm kev dav dav, uas ua rau muaj kev siv dav dav thiab kev ua haujlwm ntawm cov kev pabcuam tshiab.Kev nce qib ntawm kev lag luam yog ua tau.
Raws li 5G network pib tsim, PON zaj dab neeg tseem tab tom qhib nplooj ntawv tshiab.Lub sijhawm no, tiam tom ntej PON thev naus laus zis tab tom siv lub tswv yim tshiab kom ua tiav lub peev xwm ntau dua.Lub 25G PON yuav leverage cov ntaub ntawv chaw ecosystem, es tsis yog. cov kab ke sib kis tau siv nyob rau hauv keeb kwm ntawm PON thev naus laus zis, uas sawv cev rau theem tom ntej ntawm fiber ntau evolution, qhov tshiab ntawm PON zaj dab neeg.
Tus nqi zoo yog qhov tseem ceeb
Muaj ob qhov kev xav tau rau kev nkag mus rau kev ua tiav thev naus laus zis: kev ua tau zoo thiab kev ua lag luam xav tau.Nyob rau hauv lub loj-scale nkag network xa mus, tus qub yog tus yuam sij.Leveraging proven ecosystems thiab high-capacity optical technologies tuaj yeem pab ua kom tau txais txiaj ntsig zoo thaum ntxiv kev txhim kho tus nqi-zoo raws li kev tshawb fawb thiab kev tsim kho tshiab.
Yog li, kev lag luam ua tiav ntawm 25G PON yuav nyob ntawm nws lub peev xwm los muab 2.5 npaug ntawm bandwidth ntau dua 10G PON ntawm tus nqi qis.Hmoov zoo, 25G PON muaj txoj hauv kev zoo tshaj plaws los mus dhau 10G PON vim tias nws yuav siv lub peev xwm siab 25G optical technology siv los cuam tshuam cov chaw zov me nyuam.
Raws li cov ntaub ntawv chaw xa khoom nce, tus naj npawb ntawm 25G optics yuav nce thiab tus nqi ntawm cov cuab yeej yuav txo.Tau kawg, nws tsis tuaj yeem txuas ncaj qha rau cov ntaub ntawv chaw nruab nrab rau hauv cov kab hluav taws xob kho qhov muag (OLT) thiab kho qhov muag network (ONU) transceivers, uas yuav xav tau cov wavelengths tshiab, siab dua lub zog ntawm lub transmitter, thiab siab dua ntawm tus txais.
Txawm li cas los xij, qhov no tsis txawv ntawm cov tiam dhau los PONs siv cov khoom siv los ntawm kev thauj mus los ntev thiab metro transceivers.Tsis tas li ntawd, 25G yog ib qho yooj yim TDM thev naus laus zis uas tsis tas yuav siv lasers kim kim.
Clear daim ntawv thov scenario
Hais txog kev lag luam xav tau, qhov thib ob xav tau rau 25G PON kev ua tiav yog los xyuas kom meej tias 25G muaj cov ntaub ntawv siv meej meej, suav nrog thaj chaw, kev lag luam, thiab lwm yam.Kev ua lag luam nyob hauv tsev tuaj yeem muab lub sijhawm los sib sau cov kev pabcuam Gigabit ntawm PONs siab;hauv kev lag luam, 25G yuav muab 10G lossis siab dua cov kev pabcuam los nthuav cov kev pabcuam rau cov lag luam.
Ntxiv rau, nrog rau 5G era, kev sib kis mus ntev yuav tsum tau 25G.Txawm hais tias XGS-PON lossis 10G PTP tuaj yeem daws qhov teeb meem nruab nrab thiab rov qab zoo, vim tias qhov nce ntawm RF bandwidth thiab MIMO kav hlau txais xov txheej, 25G PON xav tau nyob rau hauv cov ntaub ntawv ntawm qhov ceev thiab siab ib leeg ntawm tes.Nyob rau tib lub sijhawm, 25G PON tau ua raws li kev hloov pauv ntawm lub xov tooj ntawm tes vim tias 25G lub cev sib cuam tshuam yuav raug siv rau ob qho tib si hauv nruab nrab thiab faib chaw.
Lwm lub suab
Raws li ib txwm muaj, kev lag luam tab tom kawm ntau yam kev xaiv rau PON evolution.Piv txwv li, 50G PON tau thov, tab sis nws ua rau muaj kev sib tw ntxov ntxov uas yuav tsis txhim kho kom txog rau thaum 2025, thiab tam sim no tsis muaj kev pom zoo rau 50G kev lag luam scenario.
Daim duab: Ntau tiam neeg ntawm PON thev naus laus zis tso siab rau cov khoom pov thawj kho qhov muag thiab hluav taws xob
Lwm qhov kev daws teeb meem yog los ua 2x10G kev sib txuas ntawm ob lub wavelengths uas tsis yog-tunable.Cov tshuaj siv GPON wavelength thiab XGS wavelength.Hmoov tsis zoo, txoj hauv kev no coj tus nqi siab dua (ob zaug ntawm 10G optics), qhov nyuaj ntxiv, thiab tsis muaj peev xwm ua ke nrog kev xa tawm GPON tam sim no, yog li tsis muaj kev lag luam rov hais dua.
Ib qho teeb meem zoo sib xws tuaj yeem tshwm sim nrog 2xTWDM tunable wavelength bonding method.TWDM twb kim heev, xav tau ob lub lasers los txuas cov wavelengths hauv ONU, uas ua rau tus nqi ntawm kev xa tawm loj dua.
25G PON yog txoj hauv kev ua tau zoo tshaj plaws los hloov kho lub network fiber-optic mus rau tiam tom ntej, cov txheej txheem yooj yim uas siv ib lub wavelength thiab tsis xav tau lub laser tuned.
Nws koom ua ke nrog GPON thiab XGS-PON thiab muab siab dua 25Gb / s tus nqi qis qis thiab 25Gb / s lossis 10Gb / s tus nqi ntws.Nws kuj tseem ua raws li kev siv tshuab kho qhov muag pom tseeb thiab kev hloov pauv ecosystem uas ua rau cov thev naus laus zis no coj mus rau kev lag luam sai dua.Nws tuaj yeem ua tau raws li qhov chaw nyob ntau dua, kev lag luam thiab lwm yam kev xav tau hauv lub sijhawm luv luv, thaum tiv nrog kev sib tw hem thawj ntawm 25G EPON thiab cov neeg ua haujlwm cable.