Ib qho khoom siv kho qhov muag yog ib qho yooj yim, pob tshab fiber ntau ua los ntawm cov iav extruded los yog yas, me ntsis thicker dua tib neeg cov plaub hau.Optical fibers feem ntau yog siv los ua ib txoj hauv kev los xa lub teeb ntawm ob qhov kawg ntawm fiber ntau thiab nrhiav kev siv dav hauv kev sib txuas lus fiber ntau, qhov uas lawv tso cai rau kev sib kis ntev dua thiab nyob ntawm bandwidths siab dua li cov xaim hluav taws xob.Optical fibers feem ntau suav nrog cov pob tshab pob tshab uas nyob ib puag ncig los ntawm pob tshab cladding khoom nrog qis qis ntawm qhov cuam tshuam.Lub teeb yog khaws cia rau hauv cov tub ntxhais los ntawm qhov tshwm sim ntawm tag nrho cov kev xav sab hauv uas ua rau cov fiber ntau ua raws li cov lus qhia.Feem ntau, muaj ob hom fiber ntau kho qhov muag: fibers uas txhawb nqa ntau txoj kev nthuav tawm lossis kev hloov pauv yog hu ua multimode fibers (MMF), thaum cov uas txhawb nqa ib hom hu ua single mode fibers (SMF).Tib hom vs multimode fiber ntau: dab tsi txawv ntawm lawv?Kev nyeem cov ntawv no yuav pab koj tau txais cov lus teb.
Tib hom vs Multimode Fiber: Dab tsi yog ib hom optical fiber ntau?
Hauv kev sib txuas lus fiber ntau optic, ib hom kho qhov muag fiber ntau (SM) yog ib qho khoom siv kho qhov muag uas tsim los nqa lub teeb ncaj qha rau hauv fiber ntau - hom transverse.Rau ib hom optical fiber ntau, txawm tias nws ua haujlwm ntawm 100 Mbit / s lossis 1 Gbit / s hnub tus nqi, qhov kev sib kis tau mus txog tsawg kawg 5 km.Feem ntau, nws yog siv rau cov teeb liab kis mus ntev.
Tib hom vs Multimode Fiber: Dab tsi yog multimode optical fiber?
Multimode optical fiber (MM) yog hom fiber ntau optical feem ntau siv rau kev sib txuas lus luv luv, xws li hauv tsev lossis hauv tsev kawm ntawv.Cov kev sib kis ceev thiab kev ncua deb yog 100 Mbit / s rau kev ncua mus txog 2 km (100BASE-FX), 1 Gbit / s txog 1000m, thiab 10 Gbit / s txog 550 m.Muaj ob hom multimode indexes: kauj ruam index thiab graded index.
Dab tsi yog qhov txawv ntawm ib hom optical fiber ntau thiab multimode?
Attenuation: Lub attenuation ntawm multimode fiber ntau yog siab dua SM fiber ntau vim nws txoj kab uas hla loj dua.Cov tub ntxhais fiber ntau ntawm ib hom cable yog nqaim heev, yog li lub teeb uas dhau los ntawm cov fiber ntau optical cables tsis cuam tshuam ntau zaus, uas ua rau kom muaj qhov tsawg kawg nkaus.
| Tib hom Fiber | MkawgFiber ntau | ||
| Attenuation ntawm 1310nm | 0.36 dB/km | Attenuation ntawm 850nm | 3.0dB/km |
| Attenuation ntawm 1550nm | 0.22 dB/km | Attenuation ntawm 1300nm | 1.0 dB/km |
Core txoj kab uas hla:Qhov sib txawv tseem ceeb ntawm multimode thiab ib hom fiber ntau yog tias yav dhau los muaj ntau txoj kab uas hla loj dua, feem ntau muaj cov tub ntxhais txoj kab uas hla ntawm 50 lossis 62.5 µm thiab cladding txoj kab uas hla ntawm 125 µm.Thaum ib hom fiber ntau ib txwm muaj ib txoj kab uas hla ntawm 8 thiab 10 µm thiab cladding txoj kab uas hla ntawm 125 µm.
Bandwidth
Txij li thaum multimode fiber ntau muaj cov tub ntxhais loj-loj dua li ib hom fiber ntau, nws txhawb ntau dua ib hom kev nthuav tawm.Tsis tas li ntawd, zoo li multimode fibers, ib leeg-hom fibers ua rau pom kev hloov pauv uas tshwm sim los ntawm ntau hom spatial, tab sis cov modal dispersion ntawm ib hom fiber ntau tsawg dua li ntau hom fiber ntau.Rau cov laj thawj no, ib hom fibers tuaj yeem muaj bandwidth siab dua li ntau hom fibers.
Jacket xim
Jacket xim yog qee zaum siv los paub qhov txawv ntawm cov kab hluav taws xob multimode los ntawm ib hom.Tus qauv TIA-598C pom zoo, rau kev siv tsis yog tub rog, siv lub tsho daj rau ib hom fiber ntau, thiab txiv kab ntxwv lossis aqua rau ntau hom fiber ntau, nyob ntawm hom.Qee tus neeg muag khoom siv violet kom paub qhov txawv ntawm kev ua tau zoo dua OM4 kev sib txuas lus fiber ntau los ntawm lwm hom.
Post lub sij hawm: Sep-03-2021