Qhov Sib txawv Thiab Lub Hom Phiaj Ntawm Ib Hom Fiber Thiab Multimode Fiber

Dab tsi yog qhov txawv ntawm ib hom fiber ntau thiab multimode fiber ntau, thiab lawv cov haujlwm yog dab tsi?
Tib hom fiber ntau thiab multimode fiber ntau yog qhov txawv ntawm rau qhov: core txoj kab uas hla, lub teeb qhov chaw, bandwidth, sheath xim, modal dispersion, thiab tus nqi.
1, Core txoj kab uas hla
Tib hom fiber ntau: Hom ib hom fibers yog 8 thiab 10 μ Cov tub ntxhais txoj kab uas hla ntawm m thiab cladding txoj kab uas hla yog 125 μ M.
Multimode fiber ntau: Cov fiber ntau multimode yog 50 thiab 62.5 μ Cov tub ntxhais txoj kab uas hla ntawm m thiab cladding txoj kab uas hla yog 125 μ M.
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2, Lub teeb qhov chaw
Tib hom fiber ntau: Siv lub laser ua lub teeb ci, nws kim dua piv rau LED teeb qhov chaw. Lub teeb tsim los ntawm lub teeb ci laser tuaj yeem tswj tau thiab muaj lub zog siab.
Multimode fiber ntau: Siv LED ua lub teeb pom kev zoo, lub teeb tsim tawm kuj tau tawg.
3, Bandwidth
Tib hom fiber ntau: nthuav tawm modal dispersion me dua li multimode fiber ntau tshwm sim los ntawm ntau hom spatial, nrog ntau dua bandwidth.
Multimode fiber ntau: Nrog rau qhov loj me me, txhawb ntau hom kev sib kis, modal dispersion ntau dua ib hom fiber ntau, thiab bandwidth qis dua ib hom fiber ntau.
4, Sab hauv kho qhov muag cable sheath xim
Ib hom kho qhov muag fiber ntau: nrog lub ntsej muag daj.
Multimode optical fiber ntau: siv cov txiv kab ntxwv lossis dej ntsuab sab nraud.
5, Modal dispersion
Tib hom fiber ntau: Lub laser siv los tsav ib hom fiber ntau ua rau tib lub teeb ntawm lub teeb, yog li nws cov modal dispersion yog me dua li ntawm ntau hom fiber ntau.
Multimode fiber ntau: vim yog siv lub teeb ci LED, multimode fiber ntau dispersion txwv nws txoj kev sib kis tau zoo, muaj cov mem tes sib kis ntau dua, thiab txwv nws cov ntaub ntawv muaj peev xwm kis tau tus mob.
6, Nqe
Tib hom fiber ntau: Tus nqi qis dua li ntawm dual hom fiber ntau, tab sis cov khoom siv ntawm ib hom fiber ntau kim dua li ntawm multimode fiber ntau, thiab tus nqi siab dua li ntawm ob hom fiber ntau.
Multimode fiber ntau: Tus nqi siab dua li ntawm ib hom fiber ntau, thiab cov khoom siv ntawm multimode fiber ntau pheej yig dua li ntawm ib hom fiber ntau, yog li tus nqi ntawm multimode fiber ntau qis dua li ntawm ib hom fiber ntau.
Lub luag haujlwm ntawm ib hom fiber ntau: Hauv kev sib txuas lus fiber ntau optic, ib hom fiber ntau (SMF) yog hom fiber ntau uas ncaj qha xa cov teeb liab kho qhov muag hauv hom transverse. Ib hom kho qhov muag fiber ntau tuaj yeem ua haujlwm ntawm cov ntaub ntawv tus nqi ntawm 100M / s lossis 1G / s de, thiab qhov kis tau tus mob tuaj yeem ncav cuag tsawg kawg yog tsib kilometers. Feem ntau, ib hom optical fibers yog siv rau cov teeb liab kis tau tus mob.
Lub luag haujlwm ntawm multimode fiber ntau: Multimode fiber ntau (MMF) feem ntau yog siv rau kev sib txuas lus luv luv ntawm fiber ntau optic, xws li hauv tsev lossis tsev kawm ntawv. Kev sib kis ceev yog 100M / s thiab kis tau tus mob mus txog 2km.
Cov ntaub ntawv txuas ntxiv:
Cov lus ceeb toom ntawm kev siv ib hom thiab multimode optical fibers:
1. Tsis muaj cov lus qhia tshwj xeeb rau sab hauv tsev kho qhov muag fiber ntau, luv yoj Optical module siv cov txiv kab ntxwv multimode optical fiber ntau, thiab cov yoj ntev module siv daj ib hom optical fiber ntau. Qhov no yog xam los ntawm kev lag luam inertia, thiab cov kev teeb tsa tshwj xeeb nyob ntawm cov chaw tsim khoom.
2. Cov khoom siv fiber ntau optic jumpers yog qhov muag heev, yog li thaum siv, kev khoov ntau dhau thiab qhwv yuav tsum tsis txhob tso cai. Txawm tias muaj kev tiv thaiv npog, kev saib xyuas yuav tsum tau them rau tsis tsuas yog yooj yim puas, tab sis kuj ua rau kom txo qis ntawm lub teeb kis tau tus mob.
3. Kev tiv thaiv ntawm fiber ntau optic jumpers: Tom qab kev sib txuas, nws yog ib qho tsim nyog los tiv thaiv cov plua plav thiab roj paug, txwv tsis pub nws yuav ua rau kev sib txuas ntawm fiber ntau optic.