"OM" txhais tau tias "Optical Multi-mode", uas yog tus qauv rau multimode fiber ntau los qhia qib fiber ntau. Tam sim no, cov txheej txheem kho qhov muag fiber ntau tau teev tseg los ntawm TIA thiab IEC suav nrog OM1, OM2, OM3, OM4, thiab OM5.
Multi-mode thiab single-mode yog dab tsi? Tib Hom Fiber (SMF) yog ib qho khoom siv kho qhov muag uas tso cai rau tib hom kev sib kis, nrog rau txoj kab uas hla ntawm cov tub ntxhais ntawm li 8-9μm thiab ib txoj kab uas hla ntawm 125μm. Multimode Optical Fiber (MMF) tso cai rau cov qauv sib txawv ntawm lub teeb kom xa mus rau ntawm ib qho fiber ntau, nrog rau txoj kab uas hla ntawm 50μm thiab 62.5μm. Piv nrog rau ntau hom fiber ntau, ib hom fiber ntau tuaj yeem txhawb nqa kev sib kis ntev dua. Los ntawm 100Mbps Ethernet mus rau 1G Gigabit network, ib hom fiber ntau tuaj yeem pab txhawb kev sib kis ntawm ntau tshaj 5000m. Multimode optical fiber tsuas yog tsim rau luv-thiab nruab nrab-nruab deb thiab me-muaj peev xwm kho qhov muag fiber kev sib txuas lus systems, xws li tsev kawm ntawv tes hauj lwm, neeg LANs, thiab cov chaw zov me nyuam.
Qhov sib txawv ntawm OM1, OM2, OM3, OM4 thiab OM5 multimode fiber ntau
|
Hom fiber ntau |
Core Diameter |
Xim ntawm Txheej Txheej |
Daim ntawv thov |
|
OM 1 |
62.5um / 125µm |
Txiv kab ntxwv |
100 Mb/s |
|
OM 2 |
50um / 125 µm |
Txiv kab ntxwv |
1 Gb/s |
|
OM 3 |
50um / 125 µm |
Aqua Blue |
10 Gb/s |
|
OM 4 |
50um / 125 µm |
Aqua Blue/Violet |
40/100 Gb/s |
|
OM 5 |
50um / 125 µm |
Dej Ntsuab |
40/100/200/400Gb/s |
1. OM1 fiber ntau siv LED teeb qhov chaw, lub hauv paus txoj kab uas hla yog 62.5μm, thiab sab nrauv sheath feem ntau yog txiv kab ntxwv. OM1 tau siv dav hauv kev tsim cov ntawv thov tau ntau xyoo thiab txhawb nqa Ethernet kis tau tus mob siab tshaj 1GB. Vim qhov loj txoj kab uas hla ntawm OM1 core, nws muaj zog lub teeb sau thiab khoov tsis kam.
OM1 Fiber, Txiv kab ntxwv txheej txheej
2. OM2 fiber ntau siv LED teeb qhov chaw, lub taub hau ntawm lub taub hau yog 50μm, thiab lub plhaub sab nrauv feem ntau yog txiv kab ntxwv. OM2, zoo li OM1, kuj tau siv dav hauv kev tsim cov ntawv thov thiab txhawb nqa Ethernet kis tau tus mob siab tshaj 1GB; Piv nrog OM1 fiber ntau, cov tub ntxhais txoj kab uas hla ntawm OM2 fiber ntau yog txo, uas zoo txo cov modal dispersion ntawm multimode fiber ntau, uas ua rau kom bandwidth thiab txo cov nqi tsim khoom.
OM2 Fiber, Txiv kab ntxwv txheej txheej
3. OM3 fiber ntau yog ib hom laser optimized multimode fiber ntau. Hom fiber ntau no siv 850nm VCSEL laser lub teeb qhov chaw, cov tub ntxhais txoj kab uas hla yog 50μm, thiab sab nrauv sheath yog aqua xiav. Nws feem ntau yog siv nyob rau hauv ib puag ncig ntawm cov ntaub ntawv chaw thiab txhawb nqa 10G lossis txawm tias nws yog 40/100G high-speed Ethernet kis tau tus mob. Piv nrog OM1 thiab OM2 fibers, OM3 muaj qhov sib kis ntau dua thiab bandwidth, yog li nws tseem hu ua optimized multimode fibers lossis 10 Gigabit multimode fiber.
OM3 Fiber, Aqua Blue Outer Sheath
4. OM4 fiber ntau yog qhov hloov kho dua tshiab ntawm OM3 ntau hom fiber ntau nrog kev ua tau zoo dua. Piv txwv li, qhov zoo bandwidth ntawm OM4 fiber ntau yog ntau tshaj ob npaug ntawm OM3 fiber ntau, thiab nws yog sib xws nrog OM3 fiber ntau, thiab sab nrauv sheath yog aqua xiav los yog violet. Hauv kev xaim ntawm 40/100G high-speed data center, OM4 fiber muaj qhov sib kis ntev dua li OM3 fiber ntau, uas tuaj yeem ncav cuag 400 meters.
OM4 Fiber, Aqua Blue los yog Violet Outer Sheath
5. OM5 fiber ntau yog hu ua wideband multimode fiber jumper (WBMMF), uas yog laser-optimized multimode fiber (MMF), uas muaj bandwidth yam ntxwv teev tseg rau wavelength division multiplexing (WDM), thiab cov txheej sheath yog dej ntsuab. Lub hom phiaj ntawm txoj kev faib fiber ntau tshiab no yog muab kev txhawb nqa rau ntau yam "luv" wavelengths ntawm 850nm thiab 950nm. Lub wavelengths nyob rau hauv no ntau yog haum rau high-bandwidth daim ntaub ntawv tom qab aggregation thiab yog haum rau cov ntaub ntawv chaw zov me nyuam nrog loj txuas mus. . OM3 thiab OM4 yog tsim los txhawb ib lub wavelength ntawm 850nm.
OM5 Fiber, Dej ntsuab txheej txheej
Nrog rau qhov kev thov nce siab rau kev siv network ceev, multimode optical fiber yog txav mus rau hauv kev coj ntawm kev poob qis, siab bandwidth thiab multi-wavelength multiplexing. Piv nrog OM1 / OM2 / OM3 / OM4 multimode fiber ntau, OM5 multimode fiber ntau muaj kev ua haujlwm siab thiab hloov tau yooj yim, tuaj yeem pab txhawb kev sib kis tau zoo dua nrog cov cores tsawg, thiab nws cov nqi thiab kev siv hluav taws xob tsawg dua. Rau ib hom fiber ntau. Nws tuaj yeem pom tias yav tom ntej, OM5 multimode fiber ntau tuaj yeem siv dav hauv 100G / 200G / 400G ultra-loj cov ntaub ntawv chaw.