Ntau cov fiber ntau (MMF), raws li ib qho tseem ceeb siv rau hauv thaj chaw hauv cheeb tsam (LANG) Txawm li cas los xij, kom paub tag nrho cov kev ua tau zoo ntawm multimode fiber ntau yuav tsum muaj, cov kev xaiv fiber ntau, txuas kev ua kom zoo dua qub, thiab kev ua kom zoo nkauj. Kab lus no yuav tshawb txog cov kev txawj ntse tseem ceeb los txhim kho kev kis tus kis las thiab kev ntseeg tau ntawm cov multimode tshuab.
1. Cov hom kev xaiv fiber ntau thiab kev ua kom zoo
Ntau lub fiber ntau yog muab faib ua Om1, om2, om3, om4, thiab om5 hom. Lawv cov tub ntxhais sib txawv sib piv nyob rau hauv cov tub ntxhais lub taub, bandwidth, thiab txhawb nqa kis kev deb. Om1 thiab OM2 siv tus 62.5 / 125μm cov cheeb tsam uas hla (piv txwv li, 10mbps rau 1gbps), tab sis lawv qhov kev sib kis ceev), tab sis lawv qhov kev sib kis mus), tab sis lawv qhov kev sib kis mus), tab sis lawv qhov kev sib kis mus), tab sis lawv qhov kev sib kis mus), tab sis lawv qhov kev sib kis tau txwv yog txwv. Niaj hnub nimno siab - Ceev teschs (piv txwv li) feem ntau siv Om3, Om4, lossis OM4, lossis OM4, lossis OM4, lossis OM4, lossis OM4, lossis OM4, lossis OM4, lossis OM4, LOSSIS Cov hauv qab no yog qee cov hauv qab no:
OM3 txhawb 10GPPS kis tau mus rau 300 metres, siv lub laser -} Cov qauv tsim qauv, thiab khav tau ib qho bandwidth ntawm 2000mHz / km.
Om4 txuas ntxiv nce bandwidth mus rau 4700MHz / KM, txuas ntxiv 10gbps thaum tseem txhawb 40G / 100GBs luv {{6 haul no.
Om5, tus qauv tshiab, txhawb suav multi {1} wavelength multagexing (swdm4), muaj peev xwm ua nws haum rau yav tom ntej high-density network.
Cov lus qhia thiab cov lus pom zoo: Ua kom tau zoo rau kev siv OM4 lossis OM5 Fiber rau kom ntseeg tau tias yav tom ntej hloov kho tau. Rau cov network uas twb muaj lawm siv OM3 lossis qis dua cov qauv, ua kom tau zoo los ntawm kev txhim kho kho qhov muag lossis cov khoom sib nrug.
2. Txuas thiab End -} ntsej muag cov lus qhia kev kho mob
Qhov zoo ntawm multimode fiber ntau sib txuas ncaj qha cuam tshuam ncaj qha cuam tshuam ncaj qha rau cov paib kev ua kom zoo thiab rov qab los, ua kev xaiv txuas ntxiv thiab xaus} ntsej muag kho tau. Cov ntsiab lus sib txuas suav nrog LC, SC, thiab MBO / MBO. MPO / MP yog feem ntau siv nyob rau hauv high-} qhov kev siv ua kom txaus (xws li 40g / 100GBps).
Connector polishing: multimode fiber ntau feem ntau siv APC (8℃Bevel) lossis UPC (tiaj) polishing. UPC yog qhov kev xaiv tseem ceeb vim nws cov qis dua kev poob qis (<0.3dB).
Kev tu thiab kev txij nkawm: cov paug tsis huv (xws li plua plav thiab roj) tuaj yeem ua rau cov paib tseem ceeb. Kev tu nrog kev tu nrog cov cuab yeej siv tau muaj roj cawv (xws li haus dej cawv) yog qhov pom zoo, thiab liab qab tes yuav tsum zam.
Xaus -} Lub ntsej muag ntsej muag: Siv lub tsom iav fiber ntau dua tshiab) los tshuaj xyuas qhov kawg- Lub ntsej muag rau smoothness thiab khawb kom ntseeg tau kev sib cuag.
Cov lus qhia: nyob rau hauv high -}}}} {{-}} lub vev xaib teeb meem.
3. Optical module thiab fiber ntau phim cov lus qhia
Cov kev ua tau zoo ntawm multimode fiber ntau yog siab nyob rau ntawm qhov sib xws ntawm lub tshuab kho kho tshiab. Kev sib raug zoo tsis raug cai tuaj yeem ua rau kis tsis tau lossis ua haujlwm tsis zoo. Cov ntsiab lus txuam nrog:
Wavelength kev sib txuam: OM3 / OM4 Fiber txhawb pab 850nm vcels lasers, thaum om5 as txhawb ntau yam wavelengths (xws li 850nm, 880nm, thiab 910nm).
Kev Sib Tw Kev Txwv Tsis Txaus: Piv txwv, Lub 10GBs SFP + Module tuaj yeem ncav cuag mus txog li 550 metres ntawm Om {} g / 100GBps yuav tsum SR4 lossis Swdm4 kev daws teeb meem.
Hom Kev Mob: Qee qhov siab - Cov ntaub ntawv ceev (xws li 40gbps
Cov lus qhia thiab cov lus pom zoo: ua ntej xa tawm, sab laj cov npe tsim khoom lag luam (xws li ua ntej muaj ntawv pov thawj kho qhov muag thiab kev sib txuas ua ke.
4. Kev sib txuas thiab kev tsim kho cov lus qhia
Kev muab cov kev sib txuam ntawm cov pej xeem muaj fiber ntau cuam tshuam nws cov kev ua tau zoo. Kev tsim nyog sib txuas nrog tsim qauv tuaj yeem txo qhov kev pheej hmoo ntawm lub teeb liab kev ua haujlwm thiab kev hla dej.
Bend radius tswj: zoo li qub bend radius yuav tsum loj dua los yog sib npaug rau 30mm (xws li nyob rau hauv cov xwm txheej txawb)
Kev npaj txoj kev npaj: zam kev sib tham cables mus rau lub zog cables kom tiv thaiv kev cuam tshuam hluav taws xob hluav taws xob (EMI). Kev siv cov tshuaj fiber ntau lossis cov tes tsho tiv thaiv tau pom zoo.
Fusion thiab txias Splicing Techniques: Fusion Spicing poob yuav tsum<0.1dB, and cold splicing (mechanical splicing) loss should be <0.3dB. This should be verified by OTDR (Optical Time Domain Reflectometry) testing.
Cov lus qhia thiab cov lus pom zoo: nyob rau hauv cov kab ke ua ke nrog ib puag ncig, siv pre {{}}}}} dua cov tshuab siv hluav taws xob kom muaj kev saib xyuas fiber ntau dua.
Tag
Ntau cov fiber ntau, nrog nws tus nqi siab - cov kev xaiv zoo thiab paub tab {1} -}} ceev tes hauj lwm. Los ntawm kev ua kom haum cov cuab yeej, cov cuab yeej txuas, kho kho cov ntsiab lus, thiab muab cov specing tshwj xeeb, kev pab cuam kis tau yooj yim. With the increasing popularity of OM5 fiber and multi-wavelength technology, the application scenarios of multimode fiber will further expand. Mastering qhov saum toj saud- Cov txheej txheem hais txog yuav muab lub hauv paus tsim rau kev tsim network thiab kev ua haujlwm.
