Optical fiber dispersion yog qhov nthuav dav ntawm lub teeb mem tes thaum nws mus los ntawm fiber ntau. Thaum pulses kis mus deb dhau, lawv sib tshooj ntawm tus txais, ua rau me ntsis yuam kev uas txwv ob qho tib si bandwidth thiab ncav cuag. Hauv 10 Gbps ib zaug - hom txuas khiav 80 km ntawm 1550 nm, piv txwv li, cov chromatic dispersion tuaj yeem tshaj 1,300 ps / nm - txaus los kaw daim duab qhov muag tag nrho yog tias sab laug tsis tswj hwm.
Rau network engineers thiab system designers, cov lus nug tsis tshua muaj "Dab tsi yog dispersion?" tab sis theej "Dab tsi ntawm kev tawg yog qhov tseem ceeb hauv kuv qhov txuas, thiab nws puas yuav tsum tau them nyiaj?" Cov lus qhia no teb cov lus nug no los ntawm kev taug kev los ntawm cov txheej txheem tseem ceeb ntawm kev sib cais, lawv cov laj thawj, thiab cov txheej txheem them nyiaj muaj nyob rau niaj hnub no - los ntawm cov qub qub DCF modules mus rau niaj hnub coherent DSP.
Dab tsi yog Optical Fiber Dispersion?
Dispersion txhais tau hais tias luv luv optical mem tes tsis nyob luv vim nws propagates los ntawm fiber ntau. Nws kis tau rau lub sijhawm. Qhov ntau nws kis tau, qhov nyuaj nws ua rau tus neeg txais kev paub qhov txawv me ntsis ntawm qhov tom ntej. Raws li covITU-T G.652 tus qauv, chromatic dispersion coefficient ntawm tus qauv ib zaug - hom fiber ntau tau teev nyob rau ntawm kwv yees li 17 ps/(nm·km) ze 1550 nm - ib qho parameter uas ncaj qha tswj hwm sai npaum li cas pulses broaden nyob deb.
Dispersion tsis yog ib qho txiaj ntsig. Ntau hom fiber ntau thiab qhov system architectures cuam tshuam los ntawm cov txheej txheem sib txawv. Hauvmultimode fiber ntau, modal dispersion dominates. Hauvtib - hom fiber ntau, chromatic dispersion thiab polarization hom dispersion yog qhov kev txhawj xeeb tseem ceeb. Kev nkag siab txog cov txheej txheem twg siv rau koj hom fiber ntau yog thawj kauj ruam mus rau kev txiav txim siab tsim nyog.
Dab tsi ua rau Optical Fiber Dispersion?
Dispersion tshwm sim los ntawm lub cev khoom ntawm fiber ntau thiab lub teeb qhov chaw. Txhua hom dispersion muaj qhov txawv txav:
Modal dispersionyog tshwm sim los ntawm lub hav zoov ntawm ntau yam propagation paths (hom) nyob rau hauv multimode fiber. Siab dua - hom kev txiav txim mus ntev dua txoj hauv kev zoo dua li qis dua - cov qauv xaj, yog li lawv tuaj txog ntawm tus txais lub sijhawm sib txawv. Qhov tshwm sim yog pulse broading uas cuam tshuam nrog kev ncua deb. Qhov no yog vim li cas multimode fiber ntau inherent ncav cuag qhov txwv - ib qho OM3 fiber txhawb 10GBASE-SR, piv txwv li, yog ntsuas rau 300 meters xwb.
Chromatic dispersionyog tshwm sim los ntawm lub wavelength -dependent refractive index ntawm iav. Vim tias tsis muaj laser emits ib lub wavelength zoo kawg nkaus, cov khoom sib txawv spectral sib txawv ntawm qhov sib txawv me ntsis. Chromatic dispersion muaj ob lub sub- cov khoom: cov khoom tawg (los ntawm lub khob nws tus kheej) thiab waveguide dispersion (los ntawm fiber ntau cov tub ntxhais- cladding geometry). Lawv cov nyhuv ua ke txiav txim siab tag nrho chromatic dispersion ntawm ib qho twg muab lub wavelength. Standard G.652 fiber ntau muaj xoom-dispersion wavelength nyob ze 1310 nm, uas yog vim li cas cov txheej txheem qub txeeg qub teg feem ntau ua haujlwm nyob ntawd. Ntawm 1550 nm - lub qhov rais nyiam rau ntev -haul thiabDWDM kis tau tus mobvim qis attenuation - chromatic dispersion accumulates loj thiab yuav tsum tau tswj nyob rau hauv ib qho kev sib txuas tshaj li ob peb kaum kilometers ntawm 10 Gbps los yog siab dua.
Polarization hom dispersion (PMD)yog tshwm sim los ntawm asymmetries nyob rau hauv lub fiber core. Nyob rau hauv ib qho zoo tagnrho fiber ntau, ob lub orthogonal polarization xeev yuav mus raws nraim tib yam ceev. Hauv kev xyaum, kev tsim khoom tsis zoo, kev ntxhov siab, thiab kev hloov pauv kub qhia txog birefringence uas ua rau ib lub xeev polarization tuaj txog me ntsis ua ntej ntawm lwm qhov. PMD yog cov txiaj ntsig kev txheeb cais - nws txawv nrog lub sijhawm thiab raws cov fiber ntau - uas ua rau nws nyuaj rau them nrog cov khoom kho qhov muag. Nws feem ntau dhau los ua qhov kev txhawj xeeb tsim nyob rau hauv keeb kwm 10G thiab 40G txuas ntau tshaj 200-300 km, lossis hauv cov tshuab siv cov qub fiber ntau nrog PMD coefficients siab dua (siab dua 0.5 ps / √km).
Peb Lub Hom Phiaj ntawm Optical Fiber Dispersion
Modal Dispersion
Modal dispersion yog qhov tseem ceeb bandwidth limiter hauv multimode fiber ntau. Nws tshwm sim vim hais tias multimode fiber txhawb ntau pua lossis ntau txhiab hom kev nthuav tawm, txhua qhov ua raws li kev sib txawv me ntsis los ntawm cov tub ntxhais. Qib-index multimode fiber ntau (OM1 txog OM5) txo cov kev sib txawv ntawm modal dispersion los ntawm qhov sib txawv ntawm qhov refractive index profile thoob plaws hauv lub hauv paus, steering siab dua - hom kev txiav txim kom lawv los ze zog rau lub sij hawm kom qis dua - xaj hom. Txawm li cas los xij, qhov ua tau zoo modal bandwidth ntawm fiber ntau teeb lub qab nthab nyuaj ntawm tus nqi me ntsis × cov khoom nyob deb. Lub pob txha hauv tsev kawm ntawv khiav 10G hla OM3 ntawm 300 m yog ua haujlwm ze ntawm lub qab nthab; kev thawb dhau nws feem ntau yuav tsum tau hloov mus rau ib zaug - hom fiber ntau dua li qhov kev faib tawm dispersion.
Chromatic Dispersion
Chromatic dispersion yog thawj qhov kev ua haujlwm tsis zoo hauv ib qho -mode ntev- ncav cuag thiab DWDM systems. Nws qhov loj me yog nyob ntawm peb yam: fiber ntau dispersion coefficient, qhov dav spectral ntawm qhov chaw, thiab qhov sib txuas nrug. Rau tus qauv G.652 fiber ntau ntawm 1550 nm, qhov sib xyaw ua ke ntau dua 100 km yog kwv yees li 1,700 ps / nm. Ntawm 10 Gbps (NRZ kev hloov pauv), qhov kev ua siab ntev dispersion yog kwv yees li 1,000 ps / nm, txhais tau tias qhov txuas tsis tau them nyiaj ntawm 1550 nm yog txwv rau li 60 km ntawm tus nqi ntawd.
Ib qho nuance tsim nyog sau cia: qhov nruab nrab ntawm chromatic dispersion tuaj yeem pab tau DWDM systems. Raws li tau piav qhia hauv Corning daim ntawv dawb ntawmfiber ntau tsim rau DWDM networks, residual dispersion txo cov theem sib piv efficiency ntawm plaub-wave mixing (FWM) - ib tug nonlinear nyhuv uas degrades ze spaced raws. Qhov no yog vim li cas tsis yog -zero dispersion-hloov fibers (G.655 thiab G.656) tau tsim: lawv tuav ib tug me me tab sis nonzero dispersion ntawm 1550 nm los suppress FWM thaum khaws tag nrho dispersion tswj tau.
Polarization Hom Dispersion (PMD)
PMD feem ntau yog qhov thib ob -kev txhawj xeeb piv rau chromatic dispersion, tab sis nws dhau los ua qhov tseem ceeb hauv cov xwm txheej tshwj xeeb. Siab me ntsis- tus nqi qub txeeg qub teg (40 Gbps thiab siab dua) yog qhov nkag siab dua rau PMD vim tias lub sijhawm luv me ntsis tawm tsawg dua rau cov pab pawg sib txawv qeeb (DGD). Cov kev sib txuas khiav dhau fiber ntau nrog PMD coefficients siab tshaj 0.5 ps/√km - ib txwm nyob rau hauv cables ntsia ua ntej nruab nrab -1990s - tej zaum yuav ntsib PMD txwv ua ntej chromatic dispersion txwv. Nyob rau hauv cov ntaub ntawv no, PMD ntsuas thiab tus cwj pwm ua ib feem ntawm txoj kev lees txais qhov txuas. Niaj hnub nimno coherenttransponderstuav PMD cov nyiaj them poob haujlwm hauv DSP, uas tau txo qis PMD ua ib qho kev xa tawm ib leeg hauv kev tsim kho tshiab.
Dab tsi ntawm Dispersion teeb meem hauv koj qhov txuas?
Cov lus teb nyob ntawm koj hom fiber ntau, qhov deb, cov ntaub ntawv tus nqi, thiab qhov system architecture. Nov yog ib lub tswv yim kev txiav txim siab:
Kauj Ruam 1: Txheeb xyuas hom fiber ntau.Yog tias koj ua haujlwm nrog multimode fiber ntau (OM1-OM5), modal dispersion yog koj qhov kev txhawj xeeb tseem ceeb. Chromatic dispersion thiab PMD yog negligible ntawm ib txwm multimode nrug. Yog tias koj ua haujlwm nrog ib zaug - hom fiber ntau (OS1 or OS2), txav mus rau kauj ruam 2.
Kauj ruam 2: Xav txog lub wavelength.Ntawm 1310 nm, chromatic dispersion nyob rau hauv G.652 fiber yog nyob ze rau xoom, yog li nws tsis tshua xav tau them nyiaj txawm nyob rau nruab nrab. Ntawm 1550 nm, dispersion accumulates ntawm kwv yees li 17 ps / (nm·km), thiab kev npaj them nyiaj yog xav tau rau kev sib txuas ntev dua.
Kauj Ruam 3: Ntsuas cov ntaub ntawv tus nqi.Cov nqi me ntsis siab dua muaj qhov ua rau muaj kev cuam tshuam ntau dua. 10G NRZ teeb liab tolerates roughly 1,000 ps / nm; 40G NRZ teeb liab zam tsuas yog 60 ps / nm. Coherent 100G / 400G systems siv cov kev hloov kho siab heev thiab DSP uas ua rau muaj kev cuam tshuam loj heev.
Kauj ruam 4: Txheeb xyuas qhov system architecture.Hauv qhov taw qhia -rau- taw tes ncaj qha- txheeb xyuas qhov txuas, koj yuav xav tau kev them nyiaj sab nraud. Nyob rau hauv ib tug niaj hnub coherent DWDM system, lub transponder DSP feem ntau lis chromatic dispersion thiab PMD digitally, feem ntau tshem tawm qhov xav tau rau standalone them modules.
Thaum twg Koj Yuav Tsum Tau Them Nqi Dispersion?
Tsis yog txhua qhov txuas xav tau ib ntu them nyiaj cais. Ib qho 10G ib qho - hom txuas khiav 20 km ntawm 1310 nm, piv txwv li, khaws cov chromatic dispersion tsis txaus thiab xav tau tsis muaj nyiaj them poob haujlwm. Tab sis kev them nyiaj yuav tsim nyog thaum muaj ntau yam kev sib koom ua ke:
Qhov txuas ua haujlwm ntawm 1550 nm dhau qhov kev ncua deb uas cov chromatic dispersion ntau tshaj tus neeg txais lub siab ntev. Cov ntaub ntawv tus nqi yog 10 Gbps lossis siab dua nrog ncaj qha - kuaj pom optics. Lub kaw lus yog DWDM thauj network nrog nrujoptical zog pob nyiaj sivthiab kev puas tsuaj. Los yog cov nroj tsuag fiber ntau tau paub txog PMD cov teeb meem - cov kab qub qub, txoj kev dav hlau raug cua thauj khoom, lossis siab - kev teeb tsa kev ntxhov siab.
Txoj cai siv tau: yog tias koj twb tau ua qhov txuas nyiaj txiag thiab phiaj xwm kev puas tsuaj, ntsuas qhov kev tawg ntawm tib theem. Kev hais txog nws thaum tsim qauv yog yooj yim dua li kev daws teeb meem tsis sib xws tom qab xa tawm.
Dispersion Compensation Methods piv
Peb txoj hauv kev tseem ceeb muaj nyob rau kev tswj kev sib cais hauv kev sib txuas ntawm fiber ntau. Txhua qhov haum rau qhov sib txawv ntawm qhov system.
Dispersion Compensating Fiber (DCF)
DCF yog ib qho tshwj xeeb tsim fiber ntau nrog qhov loj tsis zoo dispersion coefficient (feem ntau −80 txog −100 ps/(nm·km) ntawm 1550 nm). Ib qhov ntev ntawm DCF tau muab tso rau hauv qhov txuas - feem ntau ntawm qhov chaw amplifier - kom offset qhov zoo chromatic dispersion nyob rau hauv cov kis fiber ntau. DCF yog tus txheej txheem them nyiaj hauv 10G ntev -haul thiab legacy DWDM systems rau ntau tshaj ob xyoo lawm. Nws qhov teeb meem tseem ceeb yog ntxiv qhov poob qis (yuav tsum tau ua kom muaj zog ntxiv), nce latency, thiab ntxiv cov teebmeem tsis zoo vim yog thaj tsam me me ntawm DCF.
Fiber Bragg Grating (FBG)
FBG-raws li dispersion compensators siv ib lub sij hawm refractive index qauv sau rau hauv ib tug luv luv seem ntawm fiber. Lub grating tsim wavelength - nyob ntawm qhov kev xav ncua qeeb uas thim rov qab cov kev sib cais sib sau thaum sib kis. FBG modules yog compact dua DCF spools thiab qhia tsawg latency. Lawv muaj nyob rau hauv ruaj khov -dispersion thiab tunable variants. Tunable FBGs yog tshwj xeeb tshaj yog pab tau nyob rau hauv reconfigurable DWDM tes hauj lwm qhov twg daim ntawv qhia dispersion yuav hloov raws li raws li ntxiv los yog rerouted.
Electronic thiab Digital Signal Processing (DSP)
Niaj hnub nimno coherent optical systems them nyiaj dispersion digitally hauv receiver DSP. Lub coherent receiver captures ob qho tib si amplitude thiab theem ntawm qhov chaw kho qhov muag, uas muab cov ntaub ntawv txaus rau DSP kom thim rov qab chromatic dispersion thiab PMD xam. Raws li ntaub ntawv los ntawm lubIEEE 802.3Cov pab pawg ua haujlwm thiab kev lag luam, kev sib koom ua ke 100G, 400G, thiab 800G transponders niaj hnub them nyiaj ntau txhiab ps / nm ntawm chromatic dispersion hauv DSP - tshem tawm qhov xav tau rau inline DCF lossis FBG modules nkaus. Qhov kev hloov pauv no tau hloov pauv ntev ntev -haul network tsim: tshiab dua coherent DWDM kev xa tawm feem ntau tshem tawm cov khoom siv kho mob dispersion them nyiaj ib leeg.
DCF vs FBG vs DSP
| Parameter | DCF | FBG | DSP (kev sib txuas) |
|---|---|---|---|
| Kev them nyiaj yug | Kho qhov muag | Kho qhov muag | Hluav taws xob |
| Tej daim ntawv thov | 10G ntev -haul, legacy DWDM | DWDM, reconfigurable networks | 100G / 400G / 800G coherent systems |
| Puas yog PMD? | Tsis muaj | Tsis yog (chirped FBG ib nrab) | Yog lawm |
| Ntxiv qhov poob | Siab (5-10 dB feem ntau) | Tsawg rau nruab nrab | Tsis muaj (electronic) |
| Tunability | Tsau | Tsau los yog tunable | Ua kom haum siab |
| Loj thiab xa tawm | Loj fiber ntau spools ntawm qhov chaw amplifier | Compact modules | Ua rau hauv transponder |
| Qhov cuam tshuam hauv kev tsim kho tshiab | Kev poob qis | Niche | Txuj |
Yuav Ua Li Cas Xaiv Txoj Cai Them Nqi Zoo
Legacy 10G lossis Engineered DWDM Systems
Hauv cov tes hauj lwm tsim nyob ib ncig ntawm 10G ncaj qha- kuaj pom lossis thaum ntxov DWDM platforms, kho qhov muag- them nyiaj nrog DCF lossis FBG feem ntau twb yog ib feem ntawm kab kab tsim. Cov kab ke no vam khom cov ntawv qhia kev sib faib ua ntu zus - npaj ua ntu ntu ntawm qhov zoo thiab qhov tsis zoo ntawm kev sib cais - kom khaws cov khoom tawg mus rau hauv cov neeg tau txais kev pom zoo ntawm txhua qhov amplifier span. Yog tias koj tab tom tuav lossis txuas ntxiv lub network no, ua haujlwm hauv daim ntawv qhia kev faib tawm uas twb muaj lawm es tsis yog rov tsim kho cov nyiaj them rov qab. Hloov DCF modules lossis tunable FBG compensators yog cov cuab yeej txheem ntawm no.
Niaj hnub nimno Coherent Optical Systems
Yog hais tias qhov txuas siv coherent transponders (100G, 400G, los yog tshaj), DSP lis chromatic dispersion thiab PMD them nyiaj sab hauv. Tus tsim kev sib tham hloov los ntawm "DCM module twg kuv xav tau?" rau "Dab tsi yog tag nrho cov khoom tawg, thiab nws puas yog nyob rau hauv lub transponder's DSP ntau?" Feem ntau niaj hnub coherent transponders zam tau zoo tshaj 50,000 ps / nm ntawm chromatic dispersion - sib npaug rau ntau tshaj 3,000 km ntawm G.652 fiber ntau ntawm 1550 nm. Nyob rau hauv cov tshuab no, standalone DCF los yog FBG modules ntxiv tsis tsim nyog poob thiab complexity. Tshem tawm DCF qub txeeg qub teg thaum hloov kho mus rau kev sib koom ua ke yog ib qho ua tau zoo thiab zoo -cov ntaub ntawv ua kom zoo tshaj plaws nyob rau hauv ntev -haul network modernization.
Multimode Short-Txuas mus txog qhov txuas
Rau kev sib txuas ntawm ntau hom hauv tsev kawm ntawv lossis cov chaw nyob ib puag ncig, chromatic dispersion nyiaj them cov khoom tsis cuam tshuam. Kev txwv bandwidth yog modal, tsis chromatic. Yog hais tias ib tug multimode txuas tsis ua raws li qhov yuav tsum tau ua, thawj yam uas yuav tsum tau xyuas yog fiber ntau qib (OM3 vs OM4 vs OM5), txuas ntev txheeb ze rau tus qauv daim ntawv thov, connector zoo, thiabtransceiver compatibility. Kev hloov kho mus rau qib siab dua -qib multimode fiber ntau lossis hloov mus rau ib leeg - hom fiber ntau thiab optics yog txoj hauv kev ua tau zoo - tsis ntxiv cov khoom faib tawm.
Feem ntau yuam kev thiab tsis meej pem
Xav tias tag nrho cov dispersion yog teeb meem.Nyob rau hauv DWDM systems, ib tug tswj tus nqi ntawm chromatic dispersion suppresses plaub-wave mixing thiab lwm yam nonlinear nplua. Tsis yog -zero dispersion-hloov fibers (G.655) tau tsim tshwj xeeb los tswj qhov muaj txiaj ntsig zoo dispersion ntawm 1550 nm.
Piv txwv tias txhua qhov txuas yuav tsum tau them nyiaj.Ib qho 10G txuas ntawm 1310 nm tshaj 40 km ntawm G.652 fiber ntau ua haujlwm zoo hauv chromatic dispersion kam rau ua. Ntau lub lag luam thiab kev sib txuas metro tsis tas yuav them nyiaj rau tag nrho - optics thiab fiber ntau tuav nws qhov chaw.
Piv txwv tias ib leeg - hom fiber ntau tsis muaj kev tawg.Tib - hom fiber ntau tshem tawm modal dispersion, tab sis chromatic dispersion thiab PMD tseem nyob. Ntawm 1550 nm, chromatic dispersion nyob rau hauv G.652 fiber ntau yog qhov tseem ceeb thiab yuav tsum tau suav rau hauv txhua qhov ntev - ncav cuag tsim.
Xaiv ib txoj kev them nyiaj ua ntej txheeb xyuas qhov kev puas tsuaj loj.DCF tsuas yog hais txog chromatic dispersion xwb. FBG hais txog chromatic dispersion nkaus xwb. DSP hauv coherent systems hais ob qho tib si chromatic dispersion thiab PMD. Xaiv txoj hauv kev ua ntej nkag siab qhov kev puas tsuaj yog qhov tseem ceeb ua rau kev siv dag zog thiab nyiaj txiag tsis txaus.
Cov lus nug nquag
Puas yog ib qho - hom fiber ntau puas muaj kev tawg?
Yog lawm. Tib - hom fiber ntau tshem tawm modal dispersion vim nws txhawb tsuas yog ib hom propagation, tab sis nws tseem nthuav tawm chromatic dispersion thiab polarization hom dispersion. Chromatic dispersion nyob rau hauv tus qauv G.652 ib leeg- hom fiber ntau yog kwv yees li 17 ps/(nm·km) ntawm 1550 nm thiab zero ntawm 1310 nm.
Dab tsi yog qhov txawv ntawm modal thiab chromatic dispersion?
Modal dispersion yog tshwm sim los ntawm ntau txoj kev teeb pom kev zoo (hom) tuaj txog ntawm lub sijhawm sib txawv hauv multimode fiber ntau. Chromatic dispersion yog tshwm sim los ntawm qhov sib txawv wavelengths mus txawv tebchaws nyob rau hauv ib hom fiber ntau, txawm hais tias nws yog ib qho kev txhawj xeeb nyob rau hauv ib qho -mode systems. Modal dispersion cuam tshuam rau multimode fiber ntau nkaus xwb; chromatic dispersion cuam tshuam rau ob qho tib si multimode thiab ib zaug - hom fiber ntau, tab sis yog tsim ua haujlwm feem ntau hauv ib qho -mode ntev- mus txog qhov txuas.
Thaum twg yog qhov kev them nyiaj dispersion tsim nyog?
Kev them nyiaj feem ntau yog tsim nyog thaum ib qho - hom txuas ntawm 1550 nm tshaj qhov chromatic dispersion kam rau ua ntawm tus txais - piv txwv li, kwv yees li 60 km ntawm 10 Gbps nrog NRZ kev hloov kho ntawm G.652 fiber ntau. Hauv kev sib koom ua ke (100G thiab siab dua), lub transponder DSP them nyiaj rau kev sib cais sab hauv, yog li cov qauv them nyiaj ib leeg feem ntau tsis tsim nyog.
Coherent optics puas tuaj yeem tshem tawm qhov xav tau rau DCF?
Feem ntau, yog. Niaj hnub nimno coherent transponders them nyiaj chromatic dispersion thiab PMD digitally, nrog rau CD kam rau siab tshaj 50,000 ps / nm. Ntau tus tswv lag luam nquag tshem tawm cov qub txeeg qub teg DCF thaum kho dua tshiab rau cov txheej txheem sib koom ua ke, vim tias DCF ntxiv qhov poob qis yam tsis muaj txiaj ntsig uas DSP tsis tuaj yeem ua.
Dab tsi ua rau optical fiber dispersion?
Lub hauv paus ua rau nyob ntawm hom. Modal dispersion yog tshwm sim los ntawm ntau txoj kev propagation hauv multimode fiber. Chromatic dispersion yog tshwm sim los ntawm lub wavelength dependence ntawm iav refractive index thiab fiber waveguide qauv. PMD yog tshwm sim los ntawm asymmetries thiab kev ntxhov siab hauv cov tub ntxhais fiber ntau uas tsim cov kev sib txawv rau ob lub xeev polarization ntawm lub teeb.
Npaj Koj Fiber Txuas
Kev nkag siab txog kev sib cais yog ib qho ntawm qhov sib txuas loj tsim cov duab dhos ua si uas suav nrog kev txo qis, kev sib txuas tsis zoo, thiab kev siv nyiaj siv hluav taws xob kho qhov muag. Yog tias koj tab tom tsim lossis hloov kho lub network fiber ntau - seb puas yog lub hauv paus tsev kawm ntawv luv luv lossis ntev - kev thauj mus los - pib los ntawm kev txheeb xyuas hom fiber ntau, kev ua haujlwm wavelength, thiab cov ntaub ntawv tus nqi. Peb qhov kev ntsuas no txiav txim siab seb qhov kev faib tawm qhov twg yog qhov tseem ceeb thiab seb puas yuav tsum tau them nyiaj.
Rau kev pab xaiv cov khoom siv fiber ntau zoo - suav nrogfiber ntau patch cords, connectors, thiab cable sib dhos haum rau koj cov kev xav tau txuas - tshawbDimi's fiber optic dawslos yogtiv tauj peb pab pawg engineeringrau qhov project -cov lus qhia tshwj xeeb.
