WDM khoom
WDM yog dab tsi
Fiber yog ib qho khoom muaj nqis heev. Tsis muaj lwm qhov nruab nrab ntawm lub cev tuaj yeem nqa tau cov ntaub ntawv ntau dua qhov kev ncua deb. Tab sis yuav ua li cas koj tuaj yeem siv tau zoo tshaj plaws ntawm koj cov nroj tsuag fiber ntau? Cov lus teb yog wavelength division multiplexing (WDM). WDM siv ntau lub wavelengths (xim ntawm lub teeb) los thauj cov teeb liab hla ib qho fiber ntau. WDM rhuav tshem lub teeb dawb dhau los ntawm fiber ntau-optic cable rau hauv tag nrho cov xim ntawm cov spectrum, zoo li lub teeb dhau los ntawm lub prism tsim ib zaj sawv. Txhua lub wavelength (xim) nqa ib tus neeg lub teeb liab uas tsis cuam tshuam nrog lwm cov wavelengths (xim). Hauv cov ntsiab lus yooj yim: WDM tsim cov fibers virtual - txoj hauv kev zoo tshaj plaws thiab yooj yim tshaj plaws los muab cov peev txheej fiber ntau.
Khoom zoo
EDFA (Erbium Doped Fiber Amplifier) feem ntau tau txais los ntawm WDM system, uas yuav pab txhawb ntxiv qhov kev siv ntawm cov teeb liab kho qhov muag rau kev xa mus ntev.
Vim lub cev muaj zog ntawm lub teeb, tag nrho cov wavelengths yog ywj siab vim hais tias cov channel tsis cuam tshuam rau ib leeg los xyuas kom meej transparency. Kev txais yuav cov khoom siv optoelectronic yuav pab kom muaj kev ntseeg tau ntawm WDM system.
Wavelength division multiplexing cov txheej txheem tso cai rau cov kev sib txuas tshiab raws li qhov xav tau yam tsis muaj kev cuam tshuam cov kev pabcuam tsheb uas twb muaj lawm, ua rau kev hloov kho yooj yim dua.
Rau cov kab ke ib leeg, ib qho SDH system yuav tsum muaj ib khub ntawm fibers, thaum tag nrho cov multiplexing system tsuas xav tau ib khub ntawm fibers tsis hais tus naj npawb ntawm SDH subsystems. Fiber tso zis yuav tiv thaiv raws li. Nyob rau hauv txoj kev no, WDM tsis yog tsuas yog siv cov fibers ntau tshaj plaws xwb tab sis kuj pab txhim kho kev lag luam hauv network tag nrho.
Vim Li Cas Xaiv Peb
Khoom siv Advanced
Txhua lub tuam tsev tsim khoom yog nruab nrog cov kev lag luam tshaj plaws kev tsim khoom thiab kev sim cov cuab yeej.Tsis zoo li cov tuam txhab loj nrog txoj cai nruj thiab cov txheej txheem nyuaj, peb muaj kev ua haujlwm yooj yim kom ua tau raws li txhua yam ntawm cov neeg siv khoom 'kev lag luam style thiab kom tau raws li qhov sib txawv.
Kev Tswj Xyuas Zoo
Cov fiber ntau cables tshwj xeeb yog tsim los txo cov congestion zoo. Tag nrho lub tuam txhab nruj me ntsis ua raws li ISO9001, ISO14001, ISO45001 kev tswj hwm qhov zoo.
Pab neeg tshaj lij
Pab pawg neeg ua haujlwm muaj zog ua tiav ntau qhov kev pabcuam engineer ib tus neeg siv khoom.Peb tsis tsuas yog muab kev lees paub zoo rau koj, tab sis kuj tseem ua kom koj cov lag luam tsis pub lwm tus paub, thiab tiv thaiv koj cov ntaub ntawv tsis pub lwm tus paub.
One-stop Solution
Kho txhua tus neeg siv khoom zoo li nws yog peb txoj haujlwm tseem ceeb tshaj plaws. peb muaj lub peev xwm ntawm kev lag luam loj. Peb cov neeg siv khoom txaus siab ntau dua nrog kev cog lus peb qhia.
Yam khoom
Ib leeg Fiber TransmissionIb txoj kev sib kis ntawm ib leeg, uas yog, yog ib hom kev sib txuas lus ob-txoj kev tshaj ib qho fiber ntau. Cov txheej txheem no siv ob qhov sib npaug ntawm cov wavelengths rau ob qho kev qhia dhau ib qho fiber ntau. Cov tib neeg raws li nyob rau ntawm ib qho fiber ntau yuav nthuav tawm hauv ob qho tib si.
Dual Fiber TransmissionTxoj kev sib kis ntawm ob hom fiber ntau yog tsim los ntawm ob qho tib si fibers - ib fiber yog siv rau kev xa cov kev taw qhia thiab lwm qhov yog siv rau kev tau txais kev taw qhia. Nyob rau hauv ib tug dual fiber kis tau tus mob system, tib lub wavelength ib txwm siv nyob rau hauv ob qho tib si kis tau tus mob thiab tau txais cov lus qhia. Qhov thib ob fiber ntau yuav ua hauj lwm raws li ib tug thaub qab fiber ntau raws li nyob rau hauv ib tug redundant system, los yog nws yuav muab ib tug optical txoj kev nyob rau hauv lub opposite txoj kev.
Mux thiab DemuxWDM Mux thiab Demux yog tus yuam sij los txhim kho kev siv cov fiber ntau. Ntawm lub plawv ntawm kev ua haujlwm, WDM multiplexer sau tag nrho cov ntaub ntawv ntws ua ke kom thauj tau ib txhij hla ib qho fiber ntau. Ntawm qhov kawg ntawm cov fiber ntau, cov kwj demultiplexed, piv txwv li, sib cais rau hauv cov kab sib txawv dua. Nws yog ib qho tseem ceeb kom nkag siab txog Mux cov chaw nres nkoj ntawm WDM Mux / Demux. Yuav tsum muaj cov chaw nres nkoj yog ob npaug: channel chaw nres nkoj & kab chaw nres nkoj; Cov chaw nres nkoj ua haujlwm yog qhov pib npog qhov chaw nres nkoj nthuav dav, 1310nm chaw nres nkoj thiab 1550nm chaw nres nkoj, saib chaw nres nkoj, thiab lwm yam. Nkag siab Mux Ports Ntawm CWDM thiab DWDM Mux Demux yuav qhia txog cov chaw nres nkoj sib txawv rau koj kom meej.
TransceiverCov optical transceivers tau txais los ntawm WDM system yog wavelength-specific lasers, sib xws rau CWDM thiab DWDM bands, uas txawv ntawm cov qauv siv nrog 850nm, 1310nm, 1550nm bands. Nws hloov cov ntaub ntawv teeb liab los ntawm cov keyboards mus rau cov teeb liab kho qhov muag uas tuaj yeem xa mus rau hauv fiber ntau. Txhua cov ntaub ntawv ntws tau hloov mus rau hauv lub teeb liab nrog lub teeb wavelength uas yog xim tshwj xeeb.
Patch CordHais luv luv, fiber ntau thaj cable ua haujlwm raws li cov kua nplaum uas koom nrog yav dhau los kho qhov muag modules thiab multiplexers ua ke kom paub txog kev sib kis - txuas cov zis ntawm transceiver rau cov tswv yim ntawm lub multiplexer.
Tsaus FiberIb qho yuav tsum tau ua ua ntej rau txhua qhov kev daws teeb meem WDM yog nkag mus rau lub network tsaus nti. Kev txais yuav ib khub fiber ntau yog suav tias yog txoj hauv kev zoo rau kev thauj khoom kho qhov muag. Ib qho ntawm cov fibers yog siv rau kev xa cov ntaub ntawv thiab lwm qhov yog siv rau kev txais cov ntaub ntawv, uas tso cai rau cov tsheb thauj mus los ntau tshaj plaws.
Feem ntau WDM tshuab siv ntau DFB lasers uas nws zaus raug xaiv kom phim ITU zaus daim phiaj meej. Txoj kev no yuav ua tsis tau zoo thaum tus lej ntawm cov channel loj. Muaj ob txoj kev daws teeb meem. Nyob rau hauv ib txoj kev, ib leeg-hom nqaim band lasers nrog ib tug tuning ntau ntawm 10 nm los yog ntau tshaj yog ua hauj lwm. Kev siv cov lasers zoo li no txo cov khoom muag thiab cov teeb meem txij nkawm. Xwb, multiwavelength transmitters uas tsim lub teeb ntawm 8 los yog ntau dua taag wavelengths ib txhij siv tau. Txawm hais tias xws li WDM transmitters nyiam nyob rau hauv 1990s, nws tsuas yog tom qab 2001 uas monolithically integrated WDM transmitters, ua hauj lwm ze 1.55 μm nrog ib tug channel spacing ntawm 1 nm los yog tsawg dua, tau tsim thiab coj mus muag siv lub InP-raws li photonic integrated-circuit (PIC. ) technology.
Ntau cov txheej txheem sib txawv tau ua raws li tsim WDM transmitters. Nyob rau hauv ib txoj kev, cov zis ntawm ntau DFB los yog DBR semiconductor lasers, nws tus kheej tunable los ntawm Bragg gratings, yog ua ke los ntawm kev siv passive waveguides. Ib lub amplifier built-in boosts lub zog ntawm cov teeb liab multiplexed kom nce lub zog xa mus. Nyob rau hauv ib txoj kev sib txawv, cov qauv gratings nrog lub sij hawm sib txawv yog siv los kho cov wavelengths precisely ntawm ib tug array ntawm DBR lasers. Qhov nyuaj ntawm cov khoom siv no ua rau nws nyuaj rau kev sib koom ua ke ntau dua 16 lasers ntawm tib lub nti.
WDM thev naus laus zis tsis tsuas yog ua tim khawv txog cov kev hloov pauv thiab kev txhim kho hauv kev xa khoom kho qhov muag tab sis kuj tau koom nrog kev hloov pauv, uas tau cuam tshuam los ntawm kev xa tawm OTN. Raws li WDM thev naus laus zis, OTN nrog lub peev xwm sib kis tau loj heev tau ntxiv SDH thev naus laus zis kom paub txog kev ua haujlwm muaj zog ntawm kev ua haujlwm, kev saib xyuas, thiab kev tswj hwm. OTN tes hauj lwm nrog WDM thev naus laus zis tau siv dav hauv ntau qhov xwm txheej, tshwj xeeb tshaj yog rau kev sib txuas ntev ntev thiab metro, uas pab txhim kho cov kev sib txuas hauv qhov system thiab lav cov kev ntseeg siab.
Kev hais lus, kev tsim kho qhov loj-loj optical kis tau tus mob zoo li 100G OTN qaum tes hauj lwm tau coj los. Kev lag luam tau nrawm R & D thiab kev lag luam ntawm ultra-high-speed kis las thev naus laus zis zoo li 400G, 800G, thiab 1T, sib zog ua kom muaj kev cuam tshuam ntau dua hauv thaj chaw kis kab mob. Qhov kev nrhiav no yuav txhawb nqa kev siv dav dua nrog WDM thev naus laus zis hauv kev xa tawm network. Los ntawm qhov kev xav ntawm WDM cov khoom, cov khoom siv kho qhov muag kis tau tus mob network cov khoom lag luam ua tiav maj mam nrog ntau thiab ntau WDM thiab cov khoom siv kho qhov muag tau txais thoob ntiaj teb. Qhov ntsuas ntawm qhov kev lag luam xa khoom kho qhov muag tau nthuav dav raws li, nws tau kwv yees tias qhov kev thov rau WDM yuav txuas ntxiv mus.
WDM thev naus laus zis yog ib feem tseem ceeb ntawm kev ua kom nrawm rau kev txhim kho OTN tes hauj lwm mus rau kev nrawm dua, muaj peev xwm loj dua, tus nqi qis dua, ntxiv rau kev txawj ntse thiab ib puag ncig yav tom ntej.
Cov khoom xyaw ntawm WDM khoom
WDM system muaj plaub yam tseem ceeb raws li tau piav qhia hauv qab no:
Transceivers
Transceivers siv nyob rau hauv WDM system yog wavelength-specific lasers uas npog cov ntaub ntawv teeb liab los ntawm IP keyboards mus rau optical signals yuav kis tau nyob rau hauv lub network. Txij li txhua qhov channel yog pob tshab, txhua hom ntaub ntawv - tsis yog nws lub suab lossis video - tuaj yeem thauj tau ib txhij ntawm fiber ntau.
MUX thiab demux
WDM multiplexers thiab de-multiplexers yog qhov tseem ceeb rau kev ua kom zoo ntawm kev siv fiber ntau. Multiplexers sau tag nrho cov ntaub ntawv thiab xa nws ib txhij dhau lub network, thaum de-multiplexers cais cov ntaub ntawv tau txais mus rau hauv ntau txoj kev. Raws li kev lig kev cai, WDM yog ob txoj kev sib txuas lus tshaj ib khub ntawm fibers. Cov thev naus laus zis tau hloov zuj zus nrog lub sijhawm thiab tag nrho cov naj npawb ntawm cov channel thiab cov ntaub ntawv tuaj yeem thauj tau nce ntxiv.
Patch kab
Lub thaj cable yog siv los koom nrog ob lub ntsiab lus tseem ceeb - transceiver thiab multiplexer. LC connector yog ib qho nrov connector uas txuas cov zis ntawm cov transceivers mus rau multiplexer input.
Tsaus fiber ntau network
Kev nkag mus rau qhov tsaus nti fiber ntau network yog qhov yuav tsum tau ua ua ntej rau txhua qhov WDM. Kev txais yuav cov khub fiber ntau yog suav tias yog ib qho ntawm txoj hauv kev thauj khoom kho qhov muag. Ib qho fiber ntau yog siv rau cov ntaub ntawv xa mus, thaum lwm qhov yog siv rau cov ntaub ntawv rov qab.
Kev saib xyuas khoom thiab ceev faj
Tsaus fiber ntau muaj:Txhawm rau tsim kom muaj CWDM lossis DWDM network, koj yuav tsum nkag mus rau cov fiber ntau tsaus. Yog tsis muaj nws, koj txoj kev xaiv nkaus xwb yog mus xauj ib qho kev pabcuam los ntawm tus neeg teb xov tooj.
Fiber khub los yog ib qho fiber ntau:Thaum paub tseeb tias cov khoom siv kho qhov muag pom, koj yuav tsum paub seb koj puas yuav nkag tau rau ib khub fiber ntau lossis ib qho fiber ntau. Qhov no cuam tshuam rau kev xaiv ntawm cov khoom siv thiab tseem muaj peev xwm ntawm lub network. Nco ntsoov, ib khub fiber ntau tuaj yeem ua ob zaug ntau li ntau raws li ib qho fiber ntau strand. Ob qho tib si CWDM thiab DWDM tes hauj lwm tuaj yeem tsim nrog ib qho fiber ntau lossis fiber ntau.
Paub tias qhov kev poob siab npaum li cas nrog rau qhov kev ncua deb ntawm txoj kev fiber ntau:Ntau tus neeg tsim ib qho kev kos xWDM network yuav siv qhov kev ncua deb ntawm lub transceiver thiab qhov deb ntawm fiber ntau raws li cov txheej txheem tseem ceeb rau kev tsim lub network. Tab sis qhov no yog qhov txaus ntshai. Raws li qhov xwm txheej zoo tshaj plaws, DWDM thiab CDMW ZR transceiver tuaj yeem ua qhov kev xav tau 80km. Txawm li cas los xij, qhov kev ncua deb ntawm qhov optical transceiver tsuas yog cov lus qhia. Hauv kev muaj tiag, kev cuam tshuam feem ntau tshwm sim ntawm txoj kev los ntawm kev xa mus rau qhov kawg ntawm cov fiber ntau, xws li mux / demux poob, fiber ntau poob thiab thaj poob. Txhawm rau kom ntseeg tau tias lub network tuaj yeem ua haujlwm kom haum rau lub hom phiaj, xyuas kom meej tias OTDR cov txiaj ntsig tau paub tias muab qhov poob ntawm cov fiber ntau.
Network topology thiab tus naj npawb ntawm qhov chaw:Puas yog koj tab tom tsim qhov taw tes-rau-point network ntawm ob qhov chaw? Los yog ib lub network uas txuas ntau qhov chaw tej zaum hauv ib lub tsev kawm ntawv-style network? Koj puas xav tau ib qho kev sib txuas lus nrog rau sab qaum teb thiab sab qab teb txoj hauv kev ntawm kev txiav fiber ntau? Cov no yog tag nrho cov lus nug uas yuav tshwm sim thaum koj xaj cov fiber ntau tsaus nti, tab sis lawv kuj cuam tshuam rau qhov kev xaiv xaiv thaum tsim lub network. Yog tias xav tau kev sib txuas ntawm qhov chaw ib ntus, OADM modules kuj tseem yuav raug txiav txim siab, uas coj nrog lawv cov kev poob ntxiv uas koj yuav tsum coj mus rau hauv tus account thaum tsim qauv.
Yuav tsum tau saib xyuas:Feem ntau, embedded tes hauj lwm yog passive thiab yog li tsis muaj peev xwm muab txhua hom teeb liab saib xyuas. qhib kab systems, piv txwv li, muaj multiplexers nrog kev saib xyuas thiab kev ncua deb circuitry ua nyob rau hauv. Txwv tsis pub, ib tug embedded system yog tsis tau, thiab active systems siv ntxiv transponders thiab tswj systems yuav tsum tau hloov.
Koj txuas dab tsi:Yuav tsum paub txog cov ntaub ntawv tus nqi thiab cov ntaub ntawv transceiver. Ethernet keyboards, Fiber Channel keyboards thiab Sonet / SDH cov cuab yeej siv txhua yam kev cai sib txawv, yog li yuav tsum tau siv ntau hom transceiver. Cov ntaub ntawv sib txawv kuj muaj peev xwm xav tau cov qauv sib txawv. Thiab tsis yog txhua hom transceiver muaj WDM variants.
Hoobkas duab
daim ntawv pov thawj
FAQ
Q: Dab tsi yog qhov tseem ceeb ntawm DWDM
Q: Tus qauv ntawm WDM system yog dab tsi?
Q: Tus qauv ntawm WDM system yog dab tsi?
Q: WDM module yog dab tsi?
Q: Hom teeb liab twg siv WDM?
Q: Cov channel hauv WDM yog dab tsi?
Q: Dab tsi yog plaub qhov sib xyaw WDM?
Q: Qhov txawv ntawm WDM thiab DWDM yog dab tsi?
Q: Dab tsi yog qhov txawv ntawm DWDM amplifiers?
Q: Dab tsi yog qhov txiaj ntsig tseem ceeb ntawm kev siv WDM thev naus laus zis?
Q: Puas yog WDM analog lossis digital?
Q: Dab tsi tshwm sim hauv WDM txheej txheem?
Q: Puas yog WDM ib hom lossis multimode?
Q: WDM media converter yog dab tsi?
Q: WDM tseem hu ua dab tsi?
Q: WDM vs MME yog dab tsi?
Q: Ob hom WDM yog dab tsi?
Q: WDM audio driver yog dab tsi?
Q: WDM analyzer yog dab tsi?
Q: Kuv yuav qhib WDM li cas?
Peb paub zoo tias yog ib qho ntawm wdm khoom manufacturers hauv Suav teb. Thov koj xav tias dawb mus yuav zoo wdm khoom ua nyob rau hauv Suav teb nov los ntawm peb lub hoobkas. Rau kev pabcuam customized, tiv tauj peb tam sim no.