Optical fibers rau kev sib txuas lus yog tsim los ntawm cov plaub hau zoo li iav filaments them nrog lub hau yas tiv thaiv. Cov iav ntsiabteeb yog qhov tseem ceeb tsim ua ob ntu: cov tub ntxhais txoj kab uas hla yog 9 mus rau 62.5 μm, thiab lub hau npog sab nraud yog qhov ntsuas qhov ntsuas qis ntawm cov khoom iav uas muaj txoj kab uas hla ntawm 125 μm. Txawm hais tias muaj qee yam lwm yam ntawm cov khoom siv kho qhov muag raws li cov ntaub ntawv siv thiab sib txawv me me, cov uas tau hais hauv no yog qhov tshwm sim ntau. Lub teeb kis tau rau hauv cov tub ntxhais txheej ntawm qhov kho qhov muag fiber ntau los ntawm" tag nrho cov kev xav sab hauv", txhais tau tias tom qab lub teeb nkag rau ib qho kawg ntawm cov optical fiber, nws muaj kev cuam tshuam rov qab los ntawm cov tub ntxhais thiab cladding interface, thiab tom qab ntawd kis mus rau lwm qhov kawg ntawm qhov kho qhov muag fiber ntau. Ib qho hluav taws xob fiber muaj qhov tseem ceeb ntawm 62.5μm thiab cladding sab nraud ntawm 125μm hu ua 62.5 / 125μm teeb.
Tus cai ua haujlwm ntawm cov khoom siv fiber ntau
Optical fiber yog tus neeg xyuas pib uas kis cov kab hluav taws xob. Optical fiber tau faib ua ib hom fiber ntau thiab ntau hom fiber ntau raws li hom kev kho qhov muag. Hauv tib hom fiber ntau, muaj tsuas yog ib hom kev siv hluav taws xob, uas yog hais, lub teeb yog tsuas kis tau raws tus ntxhais sab hauv ntawm cov fiber. Vim hais tias cov hom kev faib tawm tau raug pov tseg kiag li, kev xa cov kab hluav taws xob ntawm ib hom fiber ntau yog dav heev, yog li nws tsim nyog rau kev sib txuas lus high-speed thiab ntev fiber ntau.
Hauv cov roj carbon fiber ntau, muaj ntau hom kev sib kis. Vim hais tias qhov sib kis lossis qhov sib cais, qhov kev sib kis ntawm cov kab hluav taws xob no tsis zoo, lub suab xaib sib zog nqaim, qhov kis tau tus mob yog qhov me me, thiab qhov kev ncua luv.
Cov yam ntxwv ntawm cov khoom siv fiber ntau
Tus qauv ntawm qhov kho qhov muag fiber yog kos los ntawm ib tus pas nrig prefabricated silica fiber ntau. Cov kab hluav taws xob sab nraud ntawm ntau hom optical fiber ntau thiab tib-hom optical fiber ntau siv rau kev sib txuas lus yog ob qho tib si 125 μm.
Lub cev tau muab faib ua ob qhov chaw: Core thiab Cladding txheej. Lub hauv paus loj ntawm ib hom fiber ntau yog 8 ~ 10μm, thiab cov tub ntxhais taub ntawm multimode fiber muaj ob qho kev qhia tshwj xeeb, cov tub ntxhais tseem ceeb yog 62.5μm (American txuj) thiab 50μm (European qauv).
Interface fiber ntau cov lus qhia tshwj xeeb: 62.5μm / 125μm multimode fiber, qhov twg 62.5μm hais txog cov tub ntxhais txoj kab hluav taws xob, thiab 125μm hais txog sab hauv lub cheeb ntawm lub fiber.
Cov kab hluav taws xob ntev ntawm lub teeb siv los ntawm ib hom fiber ntau yog 1310nm lossis 1550nm. Lub teeb nthwv dej siv los ntawm multimode fiber yog feem ntau 850 nm. Ib hom fiber ntau thiab ntau hom fiber ntau tuaj yeem ua qhov txawv ntawm cov xim. Lub cev sab nraud ntawm ib hom fiber ntau yog daj, thiab lub cev sab nraud ntawm ntau hom fiber ntau yog txiv kab ntxwv-liab.
