Kev Qhia Hloov Kho Qhov Muag Tshaj Tawm Los ntawm FOCC - Xov Xwm

Qhia Hloov Kho Optical los ntawm FOCC

Dab Tsi yog Qhov Khoos Phis Hloov Hloov?

Optical Hloov yog lub pob hluav taws xob uas ua kom muaj kev sib txuas hauv cov xov hluav taws xob lossis kev sib koom ua ke ntawm cov hluav taws xob (IOCs) tau xaiv los ntawm ib puag ncig mus rau lwm qhov hauv kev sib txuas lus. Qhov chaw deb ntawm telecom, qhov hloov kho qhov muag yog chav ntsuas uas hloov lub teeb sib txuas ntawm cov xov, thiab lub photonic hloov yog ib qho uas ua qhov no los ntawm kev siv cov khoom siv tsis yog khoom siv los tsav lub teeb (piv txwv li, hloov lub teeb yoj lossis cov taw qhia hauv qhov fiber ntau).

Lub tshuab hluav taws xob kho qhov muag tuaj yeem ua haujlwm los ntawm cov cuab yeej siv, xws li hloov lub cev hluav taws xob kom tsav ib qho los yog ntau qhov kev xaiv, lossis los ntawm kev siv hluav taws xob, cov teebmeem muaj hlau nplaum, lossis lwm txoj hauv kev. Qeeb qeeb qeeb ntawm lub ntsej muag, xws li siv cov khoom siv txav mus los, tej zaum yuav siv rau kev hloov pauv ntawm kev siv hluav taws xob hloov pauv, xws li kev ncig ib qho txhaum. Cov khawm hluav taws xob nrawm nrawm, xws li cov siv hluav taws xob siv hluav taws xob los yog cov hlau nplaum zoo, yuav raug siv los ua cov haujlwm qhov tseeb; kuj muaj nyob hauv pawg no yog semiconductor optical amplifiers, uas yog optoelectronic cov khoom siv uas tuaj yeem siv ua qhov hloov kho hluav taws xob thiab muaj kev sib txuas nrog cov txiav tawm lossis cov kab hluav taws xob sib xyaw.

(Qhia txog: WIKIPEDIA)

Optical Hloov Tshuab

Optical hloov tshuab ua lub hauv paus tseem ceeb rau txhua qhov kev sib txuas lus kho qhov muag sib txuas lus siv tshuab, nws txoj kev txhim kho thiab daim ntawv thov yuav cuam tshuam loj heev kev loj hlob ntawm cov kev sib txuas lus kho qhov muag txuas ntxiv. Yog li, nws ua haujlwm li cas?

Cov cim kho qhov muag tau siv ntau yam nrog peb txoj kev, qhov chaw faib, lub sij hawm faib, thiab WDM. Tus coj optical hloov txoj kev chaw faib chaw hloov, lub sij hawm faib hloov thiab yoj faib hloov mus ua kom tiav rau peb multiplexed raws.

Chaw seem Hloov Hloov

Nws yog tus sau lub chaw sib hloov ntawm lub teeb liab kho qhov muag, cov yooj yim kev khiav dej num ntawm qhov chaw dav dav mus rau. Spatial lub teeb mus yog lub hauv paus ntsiab lus ntawm optical hloov Cheebtsam rooj vag array hloov chaw tuaj yeem nyob rau hauv ib qho ntawm ntau cov tswv yim ntau cov zis fiber ntau tsim txoj hauv kev. Nws tuaj yeem ua lub khoob khoob spectroscopic switching unit, thiab lwm hom pob nyem tseem tuaj yeem ua ke koom ua ke sib faib sijhawm sib faib lossis cov hnub qub nthwv dej. Lub pob hluav taws xob npliag hluav taws xob feem ntau muaj ob qho tib si fiber ntau thiab qhov chaw sib cais chaw sib cais yog qhov sib faib ntawm qhov chaw sib pauv.

Lub Sijhawm Sijhawm Hloov

Qhov sib txuam ntawm cov teeb meem sib txuas lus sib txuas yog qhov sib txuas lus sib txuas lus, channel tau muab faib rau ntau lub sijhawm sib txawv, txhua qhov cim ntawm lub teeb liab kis tau hla ntau lub sijhawm, qhov channelband kom haum rau cov ntaub ntawv kho qhov muag kis tau tus mob. Yuav tsum siv lub sijhawm sib faib hloov lub sijhawm sib pauv qhov sib txawv. Lub sij hawm slot interchanger ntawm lub teeb liab tawm tswv yim yog sau ua ntu zus mus rau qhov kho qhov muag tsis raug, thiab tom qab ntawd nyeem tawm raws li cov lus txib tau tsim, yog li ua tiav ib lub thav duab thaum twg ib qho pauv hloov mus rau lwm lub sijhawm thiab hloov cov txiaj ntsig ua tiav lub sijhawm hloov pauv. Feem ntau bistable lasers tuaj yeem siv ua qhov tsis muaj qhov kho qhov muag, tab sis nws tsuas yog me ntsis tawm, thiab tsis tuaj yeem ua kom tau raws li qhov kev xav tau ntawm qhov hloov ceev thiab lub peev xwm loj. Thaum lub sijhawm kho qhov teeb meem fiber ntau yog lub sijhawm sib faib hloov ntau dua, lub sijhawm sib faib-ntau-lub teeb liab sib txuas ntxiv rau lub tshuab hluav taws xob sib cais, kom txhua qhov ntawm nws cov xa tawm tsuas yog lub teeb liab teeb ntawm tib lub sijhawm, tom qab ntawd cov cim no ua ke los ntawm kev sib txawv kho qhov muag qeeb kab, tom qab lub teeb liab ntawm cov hom ncua sij hawm kom tau txais lub sijhawm sib txawv, kev sib txuas kawg kom haum ua ntej cov cim tau sib txuam nrog lub teeb liab qub, yog li ua tiav lub sijhawm sib faib.

Wave Division Hloov

Cov nkoj hauv WDM cov tshuab, qhov chaw thiab cov chaw yuav tsum xa cov cim qhia siv tib lub wavelength, xws li tsis muaj ntau yam sib txuas ntawm cov xov tooj sib luag sib txuas ntawm cov tshuab wavelength faib multiplexing thev naus laus zis siv dav dav kho qhov muag, txhua qhov davhlau ya nyob twg siv ntau tus ntxiv, yog li ua kom muaj zog tus nqi thiab qhov nyuaj. Hauv WDM system, nthwv dej spectral pauv hauv kev sib kis kis tau zoo, kom ua tau raws li tsis muaj cov khoom siv ntxiv kom ua tiav wavelength faib multiplexing system qhov chaw thiab cov chaw sib txuas lus sib txuas lus, thiab koj tuaj yeem txuag cov cuab yeej system, txhim kho kev siv nyiaj txiag. Wave spectroscopic switching system ua ntej lub teeb hluav taws xob teeb liab demultiplexer tau muab faib ua ntau tshaj kev yoj kev sib cais yuav tsum sib pauv wavelength channel hauv txhua cov channel wavelength hloov lub teeb liab kawg tau tom qab multiplexing ua ke ntawm nthwv dej faib ua ntau yam teeb meem los ntawm cov khoom tawm kho qhov muag, uas coj kom zoo dua cov yam ntxwv ntawm cov fiber ntau-optic broadband, poob-poob band multiplexing ntau lub cim kho qhov muag, zoo heev txhim kho kev siv ntawm Fiber Channel, los txhim kho kev sib txuas lus muaj peev xwm.

Kuj tseem muaj cov tshuab hloov hluav taws xob txuas uas tau siv hauv kev sib txuas lus loj hauv ntau hom kev kho qhov muag sib txuas hauv tshuab sib xyaw ntawm ntau qib sib txuas sib txuas. Hauv cov tes hauj lwm loj yuav tsum muaj ntau lub teeb liab sib cais thiab tom qab ntawd nkag mus rau qhov sib txawv, ua qhov zoo ntawm wavelength division multiplexing tsis tuaj yeem ua si, yog li siv wavelength division multiplexing technology qib sib txuas, thiab tom qab ntawd qhov chaw faib hloov tshuab siv txhua theem ntawm qhov txuas txauv kom ua tiav qhov sib cuam tshuam ntawm kev sib txuas, thaum kawg qhov kawg thiab tom qab nthwv dej ntawm kev sib pauv ntawm cov khoom sib txig sib haum cov cim kho qhov muag, teeb liab txuas ua ke kom tiav qhov kawg tso tawm. Kev sib xyaw-siv hloov siv tshuab lub sijhawm sib xyaw, huab cua sib cais - tom qab ib tag hmo - kev faib hluav taws xob sib xyaw ob peb feeb - teev sib xyaw, huab cua sib cais - sib cais yoj.

Txhua Qhov Khoos Phis Tawm Hloov Kho Network

Txhawm rau kom pom txhua qhov kev sib txuas ntawm cov khoos phis tawm, ua ntej tshaj yog siv lub voj voos hloov mus rau qhov kho qhov muag ntxiv-txuas multiplexing (OADM) thiab OXC (optical cross txuas) thev naus laus zis kom ua tiav wavelength switching, thiab tom qab ntawv txuas ntxiv kom pom tseeb ntawm optical ntim hloov.

Wavelength switching yog raws cov wavelength hauv cov koog ntawm optical Circuit Court hloov sau, wavelength switching optical teeb liab los muab qhov kawg-rau-kawg routing thiab wavelength ntaj channel. Wavelength switching key yog siv cov khoom siv sib txuam ntawm node network, kho qhov muag ntxiv-poob multiplexing kho qhov muag sib txuas. Optical ntxiv-poob multiplexing txoj haujlwm ua haujlwm yog raws li txhua qhov kev sib koom ntawm cov network zoo nkauj poob qis thiab tso cov kab uas yuav tsum muaj nthwv dej. Nws cov ntsiab lus tseem ceeb ntawm cov sib txuam sib txuam nrog ntau dua, nrog rau cov khoom siv kho qhov muag thiab cov teeb meem sib haum xeeb, thiab lwm yam ntxiv. Optical ntxiv-tso multiplexing ntawm txoj haujlwm ua haujlwm thiab cov synchronous digital hierarchy (SDH) multiplexer cais kev ua haujlwm zoo sib xws, tab sis hauv lub sijhawm sau, thaum lub lwm yam yog ua nyob rau hauv lub kho qhov muag sau. Cov khoos phis tawm sib txuas thiab synchronous digital system digital cross-connect (DXC) cov txiaj ntsig zoo sib xws, tab sis kom ua tiav qhov kev sib txuas lus txuas rau cov lus hla rau hauv lub wavelength ntawm qhov optical network ntawm.

Optical wavelength los pauv hloov qhov tseem ceeb coj chaw ua haujlwm tsis yog txuag hluav taws xob hloov pauv, kev sib txuas-taw qhia kom paub nws tsim txoj haujlwm wavelength channel rov faib kom tau qhov kev siv ntau tshaj plaws tsis tuaj yeem ua tau, txawm tias kev sib txuas lus tsis ua haujlwm. Optical pob ntawv hloov tau tuaj yeem siv nrog qhov tsawg kawg ntawm kev hloov cov kab ke sib txig sib txig sib luag ntawm cov kab xaib, txhim kho kev sib txuas lus kev ua haujlwm ntawm lub network kho qhov muag. Optical pob ntawv hloov pob hluav taws xob feem ntau yog lub teeb thiab pob tshab pob muag hloov (OTPS), kho qhov muag tawg tau hloov (OBS) thiab kho qhov muag ntawm daim iav (OMPLS). Qhov kho qhov muag pob tshab pob pauv hloov cov yam ntxwv yog qhov ntev ntawm pob ntawv tau hloov kho, kev siv synchronous hloov pauv hloov, qhov xav tau rau txhua lub pob ntawv nkag tau yog synchronized hauv lub sijhawm, yog li nce cov teeb meem nyuaj thiab nce kev siv tus nqi. Txoj kev sib kis tau kho qhov muag tawg tau siv cov khoom siv sib txawv-ntev pob cov ntaub ntawv hloov chaw hloov chaw cov ntawv xov xwm tswj chaw thiab sib cais hauv lub sijhawm thiab chaw, kom kov yeej qhov tsis txaus ntawm lub sijhawm synchronization, tab sis nws muaj peev xwm los tsim cov pob ntawv poob teeb meem. Optical daim ntawv hloov khoom siv yog nqa tawm los ntxiv cov cim npe hauv IP pob ntawv hauv cov tub ntxhais sib txuas network nkag tau rov ua dua, thiab cov txheej txheem kev xa mus raws li tus cim hauv sab hauv cov tub ntxhais sib txuas.

Txawm hais tias kev sib pauv hloov kho lub sijhawm muaj qhov xav tau siab dua (feem ntau tshaj 10Gbps) yog qhov tsim nyog rau cov nqi xa khoom qis dua thiab ntau dua qhov system muaj peev xwm ua tiav; dhau ntawm digital kis tus nqi thaum lub kaw lus xav tau qis sib kis (2.5Gbps lossis tsawg dua), kev sib txuas hauv lub teeb tsa kom sib haum tau yooj yim dua yuav tsim nyog siv txoj kev qub ntawm txoj kev hloov ntawm photoelectric hloov dua siab tshiab. Yog li ntawv, kev siv ntawm lub luag haujlwm tam sim no yuav tsum raug xaiv raws li daim ntawv thov daim ntawv thov tsim nyog cov txheej txheem xaib.

Nrog rau yav tom ntej kev sib txuas lus network thev naus laus zis thiab txhua qhov kev sib koom tes kho qhov muag, kev hloov kho tshuab yuav muaj ntau dua thiab ntau txoj hauv kev rau kev sib txuas lus network photochemical pab ua ib qho tseem ceeb ntawm kev txhim kho kev sib raug zoo thiab tib neeg lub neej.

Cov Hom Ntawm Cov Hloov Kho Qhov Muag

Cov hloov kho qhov muag tau muab faib ua cov kho tshuab thiab tsis siv tshuab raws li cov kev tsav tsheb.

Mechanical optical hloov hloov siab rau kev txav ntawm cov khoom siv fiber ntau los yog cov khoom siv kho qhov muag los hloov txoj kev kho qhov muag, xws li lub xov tooj optical fiber ntau yam, txav lub tes tsho los txav lub lens (suav nrog tsom iav, prisms thiab tsom teeb pom kev ntawm tus kheej) hom. Qhov loj tshaj plaws ntawm kev xaiv ntawm lub teeb hluav taws xob no yog qhov tsis tau ntxig qis thiab kev poob qis. Nws qhov tsis zoo yog qeeb thiab yooj yim hnav, yooj yim rau kev vibration, cuam tshuam kev cuam tshuam.

Lub tshuab hluav taws xob tsis zoo hloov kho hluav taws xob tso tawm hluav taws xob, lub tshuab hluav taws xob, lub tshuab hluav taws xob, lub cim hluav taws xob thiab lwm yam cuam tshuam los hloov qhov hloov ntawm qhov ntsuas ntawm cov kho qhov muag, kev hloov pauv ntawm cov kev hloov pauv, xws li hloov hluav taws xob, hloov hluav taws xob, thiab hloov hluav taws xob optic hloov. Qhov ntsuas ntawm kho qhov muag no muaj qhov rov ua tau zoo, hloov mus ceev nrawm dua, muaj kev ntseeg siab, lub neej ntev thiab lwm yam zoo, thiab loj me me, tuaj yeem sib xyaw monolithically. Qhov tsis zoo yog tias qhov tsis txaus ua thiab kev hla tus qauv tsis zoo, uas yuav tsum tau ua kom zoo dua.

Ntawm no yog peb qho khoom siv kho qhov muag pom.
Opto-Mechanical Hloov

Opto-mechanical hloov yog qhov qub tshaj plaws ntawm kev siv hluav taws xob thiab hloov kho ntau tshaj plaws thaum lub sijhawm. Cov cuab yeej ua tiav hloov mus los ntawm txav mus rau fiber ntau lossis lwm cov khoom siv optic los ntawm kev txhais tau ntawm stepper motors lossis relay caj npab. Qhov no ua rau lawv qeeb qeeb nrog lub sijhawm hloov hauv 10-100 ms ntau. Lawv tuaj yeem ua tiav txoj kev cia siab zoo, poob ntxig rau ntawm cov ntuag, thiab cov pob hla. Feem ntau, opto-mechanical optical keyboards hloov cov pa hluav taws xob los ntawm txhua lub tswv yim thiab cov zis fiber ntau thiab txav cov collimated kab teeb ib ncig ntawm sab hauv lub cuab yeej. Qhov no tso cai rau qhov kev poob qis tsis zoo, thiab tso cai rau kev ncua deb ntawm kev nkag thiab cov zis fiber ntau yam tsis muaj teebmeem. Cov cuab yeej siv no muaj ntau dua los sib piv nrog lwm cov kev hloov pauv, txawm hais tias cov cuab yeej tshiab micro-kov yeej qhov no.

Thermo-Optic Hloov

Cov ntsuas hluav taws xob thermo-optic feem ntau ua raws li waveguides uas ua hauv polymers lossis silica. Rau kev ua haujlwm, lawv cia siab rau kev hloov pauv ntawm qhov ntsuas qhov ntsuas rov qab nrog qhov kub thiab txias tsim los ntawm cov cua sov tsis kam rau tso rau saum lub nthwv dej. Lawv poob qis tsis txwv lawv hauv kev siv tam sim no.

Electro-Optic Hloov

Cov no feem ntau ua raws li semiconductor, thiab lawv txoj haujlwm yog nyob ntawm qhov hloov ntawm qhov ntsuas qhov ntsuas nrog hluav taws xob hluav taws xob. Cov yam ntxwv no ua rau lawv nkag siab nrog cov khoom siv hluav taws xob ntau nrog kev siv hluav taws xob tsawg. Txawm li cas los xij, tsis yog cov hluav taws xob hluav taws xob tsis ua rau cov thermo-optic hloov tau tseem tuaj yeem phim lub ntxig tsis tau, kev ua haujlwm rov qab, thiab kev ruaj ntseg ntev ntawm opto-mechanical optical keyboards. Cov thev naus laus zis txuas ntxiv mus rau txhua qhov txuas ntawm cov kab hluav taws xob uas tuaj yeem hla cov kab hluav taws xob yam tsis tau txhais lub teeb liab rau hauv thaj chaw hluav taws xob. Qhov no zoo heev nce hloov ceev, tso cai rau niaj hnub no telcos thiab networks kom nce cov ntaub ntawv cov nqi. Txawm li cas los xij, cov thev naus laus zis tsuas yog tam sim no hauv txoj kev txhim kho, thiab cov kev siv lub tshuab xaib raug nqi ntau dua li cov tshuab uas siv cov opto-mechanical keyboards.

Optical Hloov Chaw Tiv Thaiv rau DWDM Kev Ruaj Ntseg Network

Optical hloov kev tiv thaiv kev tiv thaiv rau kev ruaj ntseg ntawm kev sib txuas lus network muab cov txheej kev khwv nyiaj txiag, tswv yim daws teeb meem, tsim kom tsis muaj qhov thaiv, tiv thaiv qhov siab, hloov tau, tiv thaiv kev muaj peev xwm ntawm kev sib txuas lus kho qhov muag. Optical hloov thaiv kev tiv thaiv los ntawm kev hloov kho tsis siv neeg thiab network tswj cov chaw nres tsheb, koj tuaj yeem ua tiav lub teeb taws thaiv kev tiv thaiv, kev saib xyuas thiab cov kev tawm ntawm lub zog kho qhov muag thaum muaj xwm ceev xa peb txoj haujlwm tseem ceeb.

DWDM cov kab ke hauv lub cev thiab cov hluav taws xob hauv cheeb tsam fiber ntau kis tau txais cov ntawv thov muaj coob. Vim tias qhov ntau ntawm cov tsheb khiav los ntawm kev ua kom pom qhov tseem ceeb ntawm kev nyab xeeb ntau thiab ntau dua thaum muaj kev tiv thaiv tag nrho yuav cuam tshuam rau txhua lub lag luam network tuav. DWDM kev ruaj ntseg network ib txwm yog qhov tseem ceeb tshaj plaws hauv kev sib kis txij nkawm kev ua haujlwm. Txawm li cas los xij, DWDM kev tiv thaiv thev naus laus zis los ntawm nws tus kheej cov kev txwv, muaj teeb meem xws li tsis hloov, peev txheej loj, thiab cov nyhuv tsis zoo. Tom qab ntawd cov kho qhov muag hloov tiv thaiv tshuab los ua lub luag haujlwm tseem ceeb hauv DWDM kev ruaj ntseg network.

Lub kho qhov muag tiv thaiv kev tiv thaiv kev hloov hluav taws xob yog lub teeb tsa ntawm lub ntsuas hluav taws xob, kev kuaj xyuas lub zog kho qhov muag, lub teeb pom kev ruaj khov nyob rau hauv ib qho qib siab ntawm kev sib xyaw ua ke. Kev tswj xyuas lub zog ntawm cov khoom siv hluav taws xob thiab cov kev hloov kho qhov muag tswj kev sib koom tes, kev xaiv qhov sib cais ntawm 97: 3 yog qhov tsim nyog dua ntxiv rau lub pob tw, qhov sib npaug ntawm kwv yees li 0.2dB attenuation rau kis kab; optical switching module muaj 1 × 2 lossis 2 × 2 kev hloov kho qhov muag, tswj los ntawm qhov hloov ntawm qhov tseem ceeb thiab thaub qab lub teeb rov qab ua haujlwm.

Tiag tiag-lub sijhawm soj ntsuam ntawm lub zog kho qhov muag pom kev sib txuas lus sib txuas lus optical fiber kho qhov muag pom tus nqi hluav taws xob tau ceeb toom rau lub ntsiab tswj hluav taws xob; tsom xam thiab sib piv ntawm cov qauv tswj tseem ceeb, pom tau hais tias kev hloov pauv ntawm tus nqi ntawm lub zog kho qhov muag ntau dua qhov kev txiav txim siab ua ntej pib hloov mus rau cov lus qhia tam sim ntawd mus rau qhov hloov kho hloov kho module; kho qhov muag hloov ntawm tes los ntawm cov kev taw qhia tam sim ntawd kev hloov pauv tau tshwm sim. Txhawm rau kom ua tiav kev hloov hauv kev ua haujlwm.

Cov txheej txheem kho qhov muag tau hloov pauv cov cuab yeej tiv thaiv kev koom nrog lub cev sib kis tau ua tsis muaj kev cuam tshuam nrog cov yam ntxwv sib kis. Qhov tseeb, hloov khoom siv tau koom nrog hauv qhov hloov kho kho qhov muag thiab lub tshuab hluav taws xob tsuas yog ob lub tshuab ntsuas hluav taws xob tsis muaj dhau.

Ib qho kawg ntawm chav hloov hluav taws xob tau txuas nrog lub tshuab xa hluav taws xob hauv lub tshuab xa hluav taws xob, lub ntsiab hluav taws xob fiber ntau cable thiab seem cable, feem txuas nrog ob lub lag luam xa tawm ntawm 2 × 2 hloov kho qhov muag. Thaum txoj kev kho qhov muag tshwm sim thaum lub zog kho qhov muag tsis pom zoo, lub teeb tsa hluav taws xob tau hloov mus rau lwm txoj kev hloov kho.

Nws tau nkag siab tias kev siv hluav taws xob tiv thaiv kab ke muaj qhov zoo li hauv qab no. Kev hloov mus ceev nrawm dua, kho qhov muag hloov pauv ceev nrawm nkoj 5ms, ntxiv rau qhov system soj ntsuam, lub sijhawm teb ntawm lub sijhawm hloov ib zaug ntawm tsawg dua 20ms, lub sijhawm hloov pauv tsawg dua 50ms rau tag nrho cov kab ke, kev hloov pauv kev ua haujlwm tuaj yeem ua tau tsis muaj kev cuam tshuam nrog kev sib txuas lus, kom ua tiav qib kev lag luam ntawm kev tiv thaiv.

Hloov mus, kev ntseeg siab, siv dhau los ntawm kev tswj xyuas lub zog kho qhov muag, kom tsis txhob muaj lub tswb tsis tseeb ntawm tus ncej kho qhov muag, kom hloov mus rau kev txiav txim siab kom raug. Cov khoom siv thauj khoom fiber ntau mus xyuas, kom ntseeg tau tias qhov siv tau ntawm lub pob hloov mus, thiab tseem raug saib xyuas tom qab hloov txoj hauv kev hloov kho.

Cov haujlwm xa tawm thaum muaj xwm txheej ceev, hloov cov lus txib xa tawm los ntawm qhov kev zov me nyuam, koj tuaj yeem siv txoj hauv kev thauj mus los txhawm rau kom paub qhov tseeb ntawm qhov tsis muaj qhov thaiv cov txiav tawm thiab cov kab ua haujlwm. Lub tshuab hloov pob hluav taws xob rau lub tshuab xa hluav taws xob yog pob tshab, piv txwv li cov cuab yeej hloov pauv tsis xav tau hom kev sib kis yuav siv tau SDH lossis DWDM.

Kev tiv thaiv hluav taws xob tiv thaiv DWDM yog kev lag luam thiab nyab xeeb ib txoj kev tiv thaiv kab, tab sis lub teeb hluav taws xob tsis siv neeg tiv thaiv kev tiv thaiv rau DWDM systems, muaj ntau yam teeb meem yuav tau txiav txim siab. Splitter 97: 3 spectral, kho qhov muag hloov khoom siv nkag mus tsis tau yog li 2 dB kev cuam tshuam lub teeb hluav taws xob hloov, lub kaw lus muaj qhov ntxiv ob-kab hluav taws xob uas nws cov hluav taws xob ntxig hluav taws xob tau kwv yees li 1 dB, yog li lub tshuab hloov hluav taws xob txhua qhov kev cuam tshuam theoretically ntau yuav coj 3dB attenuation, thiab ntau rooj plaub ntawm kev siv tswv yim tsuas yog hauv 1.5-2.5dB.

Optical automatic switching system rau DWDM kab tiv thaiv yog ob qho tib si muaj kev nyab xeeb thiab nyiaj txiag txhais tau tias ntawm kev tiv thaiv. Lub neej yav tom ntej, raws li qhov loj ntawm lub network txuas ntxiv, kho qhov muag tiv thaiv kev tiv thaiv yuav ua lub luag haujlwm tseem ceeb dua kom ua tau raws li cov cai ntawm kev ntsuas kev ntsuas, txhim kho kev nyab xeeb ntawm kev khiav haujlwm ntawm lub network xa.

FOCC's Cov Khoom Mus Kho Qhov Teeb Pom Kev Zoo

FOCC cov khoom siv kho qhov muag tau los ntawm Opto-Mechanical thev naus laus zis nrog kev muaj pov thawj kev ntseeg tau thiab muaj raws li qhov hloov pauv kho qhov muag 1 × 1, 1 × 2, 2 × 2 Tsis txuas ntxiv, Latching, Ib hom-hom, Multimode hloov. Dhau li ntawm cov kev ua haujlwm siab Opto-Mechanical hloov kev daws teeb meem, yog tias koj xav mus yuav lwm yam xws li thermo-optic thiab electro-optic sawv daws yuav, thov hu rau kev muag khoom rau Cov Kev Pab Cuam Tshwj Xeeb.

Muaj Kev Txhim Kho

1X1 Neeg Kho Tshuab 1X2 Neeg Kho Tshuab

1X4 Neeg Kho Tshuab 1X8 Neeg Kho Tshuab

1X16 Neeg Kho Tshuab 2X2 Neeg Kho Tshuab

2X2B Ntsuas 2X2BA Neeg Kho Tshuab

D1X2 D2X2 Neeg Kho Tshuab

D2X2B Neeg Kho Tshuab

Muaj Hom

Ib Leeg-Hom

Multimode

Muaj Cov Qauv Tswj

Nqa Tau

Tsis-kab teeb

Kev Qhia Hloov Kho Qhov Muag Los Ntawm FOCC

Optical Hloov Chaw Tiv Thaiv rau DWDM Kev Ruaj Ntseg Network