Optical fiber xa cov teeb liab nyob rau hauv daim ntawv ntawm lub teeb pulses, thiab siv iav los yog plexiglass ua lub network kis nruab nrab.Nws muaj cov tub ntxhais fiber ntau, cladding thiab tiv thaiv npog.Optical fiber ntau tuaj yeem muab faib ua Tib Hom fiber ntau thiab ntau hom fiber ntau.
Ib hom kho qhov muag fiber ntau tsuas yog muab ib txoj hauv kev kho qhov muag, uas yog qhov nyuaj rau cov txheej txheem, tab sis muaj peev xwm sib txuas lus loj dua thiab kev sib kis ntev dua.Multimode fiber ntau siv ntau txoj hauv kev kho qhov muag kom xa cov teeb liab tib yam, thiab kev sib kis ceev yog tswj los ntawm kev cuam tshuam ntawm lub teeb.
Optical fiber feem ntau yog siv rau kev sib txuas lus ntawm kev sib txuas lus.Thaum lub sij hawm kis tau tus mob, ntau hom optical fibers raug xaiv raws li ib puag ncig thiab kev xa mus.Muaj cov nram qab no hom optical fibers siv nyob rau hauv computer networks
A. 8.3pm tub ntxhais / 125pm plhaub, ib leeg-hom optical cable;
B. 62.5um core / 125um plhaub, multimode optical cable;
C. 5OPm core / 125pm plhaub, multimode optical cable;
D. Loopm core / 140pm plhaub, multimode optical cable.
Cov kab hluav taws xob kho qhov muag feem ntau yog tsim los ntawm cov khoom siv kho qhov muag (iav plaub hau li nyias li cov plaub hau) thiab cov tsho tiv thaiv yas thiab cov hnab yas.Tsis muaj hlau xws li kub, nyiaj, tooj liab thiab txhuas nyob rau hauv optical cable, thiab feem ntau tsis muaj nqi rov ua dua.Cov kab hluav taws xob kho qhov muag yog ib txoj kab kev sib txuas lus uas muaj qee tus xov tooj ntawm cov khoom siv kho qhov muag tsim cov tub ntxhais cable hauv qee yam, uas yog npog nrog lub tsho thiab qee qhov kuj tseem npog nrog lub tsho sab nrauv kom paub txog kev sib kis ntawm cov teeb liab kho qhov muag.Ntawd yog: cable tsim los ntawm fiber ntau optical (optical kis tau tus mob) tom qab ib qho txheej txheem.Cov qauv yooj yim ntawm cov kab hluav taws xob kho qhov muag feem ntau yog tsim los ntawm cov tub ntxhais cable, cov hlau txuas ntxiv, cov muab tub lim, thiab cov ntaub qhwv.Tsis tas li ntawd, muaj lwm yam khoom siv xws li cov txheej txheem dej tsis zoo, cov txheej txheem tsis sib xws, thiab cov hlua hlau insulated raws li xav tau.
Lub ntsiab yog vim li cas rau txoj kev loj hlob sai ntawm fiber ntau optic cable yog tias nws muaj cov yam ntxwv hauv qab no:
1. Kev sib kis bandwidth yog dav heev thiab kev sib txuas lus muaj peev xwm loj heev;
2. Tsawg kis tsis tau thiab ntev relay nrug, tshwj xeeb tshaj yog haum rau kev sib kis mus ntev;
3. Muaj zog tiv thaiv xob laim thiab tiv thaiv hluav taws xob cuam tshuam;
4. Kev ceev ntiag tug zoo, tsis yooj yim rau kev eavesdropped lossis cuam tshuam cov ntaub ntawv;
5. Me me thiab lub teeb yuag;
6. Tsawg me ntsis yuam kev tus nqi thiab siab kis tau tus mob kev cia siab;
7. Tus nqi poob tas li.
Cov qauv yooj yim ntawm cov kab hluav taws xob kho qhov muag feem ntau yog tsim los ntawm cov tub ntxhais cable, cov hlau txuas ntxiv, cov muab tub lim, thiab cov ntaub qhwv.Tsis tas li ntawd, muaj lwm yam khoom siv xws li cov txheej txheem dej tsis zoo, cov txheej txheem tsis sib xws, thiab cov hlua hlau insulated raws li xav tau.Cov kab hluav taws xob kho qhov muag yog tsim los ntawm cov tub ntxhais uas muaj zog ntxiv thiab cov tub ntxhais cable, lub plhaub thiab lub plhaub sab nraud.Muaj ob hom ntawm cov tub ntxhais cable qauv: ib leeg-ntxhais hom thiab ntau-ntxhais hom: ib leeg-ntxhais hom muaj ob hom: tag nrho hom thiab raj ntim hom;multi-core hom muaj ob hom: ribbon thiab unit type.Sab nrauv sheath muaj ob hom hlau armor thiab tsis yog armor.
Kev tsim cov txheej txheem ntawm optical cable feem ntau muab faib ua cov txheej txheem hauv qab no:
1. Kev tshuaj xyuas ntawm cov khoom siv kho qhov muag: xaiv cov khoom siv kho qhov muag nrog cov yam ntxwv sib kis tau zoo thiab tsim nyog nro.
2. Staining ntawm fiber ntau optical: Siv tus qauv chromatogram tag nrho los cim, tsis tas yuav fading thiab tsiv teb tsaws ntawm qhov kub thiab txias.
3. Secondary extrusion: siv cov yas nrog siab elastic modulus thiab qis linear expansion coefficient rau extruded mus rau hauv ib lub raj ntawm ib tug me me, muab cov fiber ntau rau hauv cov dej-pov thawj thiab cov gel, thiab khaws cia rau ob peb hnub (tsis pub tsawg tshaj li ob hnub).
4. Twisted optical cable: twist ob peb extruded optical fibers nrog rau cov chav tsev reinforced.
5. Squeeze lub txheej txheej ntawm lub kho qhov muag cable: ntxiv ib txheej ntawm sheath rau twisted optical cable.