Wavelength-division multiplexing (WDM) thev naus laus zis sib txuas ntau lub wavelengths rau hauv ib qho fiber ntau optical. Cov txheej txheem no ua rau kev siv fiber ntau zoo dua, vim nws ua kom muaj peev xwm fiber ntau los ntawm qhov zoo ntawm 16-96 thiab ua kom muaj kev sib txuas lus kho qhov muag zoo.
Multiplexing ntau wavelengths mus rau ib qho fiber ntau ua tiav kev siv fiber ntau thiab cov ntaub ntawv muaj peev xwm hloov mus ntev dua.
Hauv WDM thev naus laus zis, txhua channel yog pob tshab rau qhov ceev thiab hom ntaub ntawv. Ib qho kev sib xyaw ntawm Ethernet, SAN, OTN, SONET / SDH thiab cov kev pabcuam video ib txwm tuaj yeem kis tau ib txhij dhau ib qho fiber ntau lossis fiber ntau. Muaj ob hom WDM technologies: DWDM - ntom wavelength division multiplexing, thiab CWDM - coarse wavelength division multiplexing. Txhua lub tshuab muaj cov yam ntxwv uas haum rau qhov sib txawv ntawm ib puag ncig, kev sib koom tes thiab cov neeg siv khoom xav tau.
Kev sib txuas ntawm DWDM System: HT6800 (DCI White Box)
DWDM Solutions rau Metro, Long Haul thiab High Capacity DCI Networks
DWDM C-band spectrum txhawb nqa txog 96 wavelengths, spaced ntawm tus qauv ITU daim phiaj ntawm 50GHz, 64 wavelengths, spaced ntawm tus qauv ITU kab sib chaws ntawm 75GHz, thiab 48 wavelengths, spaced ntawm tus qauv ITU kab sib chaws ntawm 100GHz. DWDM kuj txhawb nqa flex-grid uas hloov tau yooj yim bandwidth spectrum slices raug faib rau cov teeb liab kho qhov muag.
The dense division multiplexing architecture enables the fitting of multiple wavelengths on a single fiber and supports long haul, metro and DCI applications with capacities of 10G/100G/200G/400G per wavelength.
Daim duab ntawm DWDM Network nrog Mux/Demux thiab EDFAs
Ib qho ntawm qhov zoo tshaj plaws ntawm DWDM yog kev siv cov khoom siv kho qhov muag, uas tuaj yeem nthuav dav tag nrho DWDM spectrum thiab kov yeej qhov kev ncua ntev ntawm kev txo qis thiab fiber ntau poob, ua kom cov nqi sib kis tau ntev. Lub optical amplifiers tau tswj thiab teeb tsa ua ib feem ntawm qhov kho qhov muag network thiab muaj qhov hloov tau nce thiab ua haujlwm hom. Muaj ntau ntau hom amplifiers uas yog siv raws li qhov txuas tsim xws li koob / inline / nruab nrab theem / pre-amp EDFA, thiab Raman. Thaum txhawb nqa los ntawm Erbium-doped-fiber amplifiers (EDFAs), DWDM systems tuaj yeem txhawb nqa kev siv ntev ntev ntawm ntau txhiab mais yam tsis tas yuav muaj cov khoom siv rov ua dua tshiab.
DWDM pluggable optical transceivers txhawb nqa wavelength tunability, uas txo cov zauv feem xav tau thiab ua kom lub sij hawm xa khoom sai dua thaum tseem txo cov khoom seem. Lub 10G / 100G / 200G / 400G transceivers txuas rau pem hauv ntej vaj huam sib luag thiab yooj yim ua kom muaj peev xwm them nyiaj raws li koj-loj hlob network architecture.
Qhov kev xav tau ntawm kev kub ceev, muaj peev xwm ntau dua thiab kev ncua ntev tau ua rau DWDM thev naus laus zis ntawm kev xaiv rau greenfield installation, rau kev kho dua tshiab cov tes hauj lwm uas twb muaj lawm, thiab yuav tsum tau xa mus rau 100G thiab siab dua.
Optical multiplexer / demultiplexer (mux / demux) txhawb 4 txog 96 DWDM raws hauv fiber ntau, nrog 50GHz, 75GHz thiab 100GHz qhov sib nrug, raws li cov qauv tso zis.
HTFuture muab tag nrho cov txheej txheem kho qhov muag thauj khoom, suav nrog ROADM, optical amplifiers, transponders, muxponders, OTN txheej, thiab kev tswj xyuas network.
Raws li cov kev xav tau bandwidth loj hlob sai, cov neeg ua haujlwm kho qhov muag tau sib tw nrog kev txuas ntxiv thiab hloov kho lawv WDM tes hauj lwm los ntawm kev ntxiv cov wavelengths tshiab thiab hloov txoj kev wavelength hauv lub network. Lub reconfigurable optical add/poob multiplexer (ROADM) enables dynamic thiab saj zawg zog wavelength routing peev xwm haum rau mesh, nplhaib, linear ntxiv / poob, core thiab ntug DWDM network topologies, los ntawm kev muab cov wavelengths los ntawm ib tug tej thaj chaw deb tswj system yam tsis muaj kev hloov loj network los yog redesign. . ROADM txhawb cov xim tsis muaj xim, tsis muaj kev taw qhia, 50GHz / 75GHz / 100GHz thiab flex-grid, thiab ua kom tsis siv neeg lub zog sib npaug ntawm cov wavelengths thoob plaws lub network, uas yog qhov tseem ceeb tshwj xeeb tshaj yog rau kev sib txuas nrog ntau EDFAs thiab ntau txoj kev.
Qhov txawv ntawm DWDM & CWDM yog dab tsi?
CWDM tau siv los ua qhov kev xaiv nrov hauv lub peev xwm qis, luv luv thiab qis tus nqi (txog 10G ib lub wavelength) daim ntawv thov, nrog rau hauv cov tes hauj lwm uas qhov kev xav tau pib tsis tshaj 8 wavelengths. Tsis tas li ntawd, tus nqi qis nkag thiab qhov sib txawv ntawm kev lag luam nplai ua rau CWDM zoo tagnrho rau kev teeb tsa thawj zaug. Txawm li cas los xij, CWDM txwv tsis pub vim nws tsis tuaj yeem nthuav dav thiab tsis txhawb nqa DWDM 100G / 200G / 400G wavelengths. Raws li qhov xav tau kev muaj peev xwm loj tuaj, yog li qhov kev thov kom muaj peev xwm los ntawm kev ntxiv DWDM rau CWDM infrastructure uas twb muaj lawm.
Cov ntsiab lus: txhua qhov kev thov DWDM daws teeb meem tsim thiab nqe lus hais, pls xav tias dawb txuas nrog kuv.
