Dab tsi yog ib hom fiber ntau optic

Hauv kev sib txuas lus fiber ntau optic, ib hom fiber ntau yog ib hom fiber ntau tsim los xa ib kab (hom) ntawm lub teeb. Feem ntau, muaj ntau lub wavelengths ntawm lub teeb nyob rau hauv no beam. Txawm hais tias txoj kev nthuav dav ntawm kab teeb yog tib yam rau cov fiber ntau optic cable, nws feem ntau hu ua transverse hom vim nws cov electromagnetic yoj oscillation kev taw qhia yog perpendicular rau fiber optic cable.

Ib hom fiber ntau tsis tawg zoo li multimode fiber ntau, thiab ib hom fiber ntau tsis tawg. Tib hom fiber ntau kuj zoo dua li multimode fiber ntau hauv kev tswj xyuas qhov tseeb ntawm qhov ntev-ntev optical pulses. Yog li cov bandwidth ntawm ib hom fiber ntau yog siab dua li ntawm ntau hom fiber ntau. Tib hom feem ntau siv lasers li lub teeb qhov chaw, thaum multimode feem ntau siv lub teeb-emitting diodes raws li lub teeb qhov chaw. Cov khoom siv tib hom ntsig txog kuj tseem kim, tab sis ib hom fiber ntau nws tus kheej yog pheej yig dua li multimode fiber ntau.

Ib txoj kab uas hla ntawm cov tub ntxhais fiber ntau yog nyob nruab nrab ntawm 8 thiab 10 µ m, thaum txoj kab uas hla ntawm lub plhaub coated fiber ntau yog 125 µ m; Lub wavelength ntawm lub teeb uas tuaj yeem dhau mus yog 1310 lossis 1550 nm. Tib hom optical fibers tuaj yeem ua rau ntau yam tshwj xeeb raws li lawv cov khoom sib txawv ntawm lub cev lossis tshuaj lom neeg, xws li tsis yog xoom dispersion optical fibers thiab xoom dispersion optical fibers. Tib hom optical fibers feem ntau coated nyob rau hauv daj kom paub qhov txawv ntawm ntau hom fibers coated nyob rau hauv txiv kab ntxwv.