Cov fibers ib hom thiab cov fibers multimode yog ob hom fibers optical siv hauv kev sib txuas lus thiab kev sib txuas lus rau kev xa cov ntaub ntawv hla kev deb. Qhov sib txawv tseem ceeb ntawm lawv yog nyob rau hauv qhov loj ntawm lub hauv paus, uas yog qhov nruab nrab ntawm cov fiber uas lub teeb mus los. Nov yog kev sib piv ntawm qhov muaj peev xwm ntawm cov fibers ib hom thiab cov fibers multimode:

DQhov sib txawv ntawm Ib Hom thiab Multimode Fiber:

Ib Hom Fiber:

Ib hom fiber ntau muaj lub qhov me me dua, feem ntau nyob ib ncig ntawm 9 microns.

Nws tsuas tso cai rau ib hom teeb kom nthuav dav xwb, ua rau muaj kev sib kis tsawg dua thiab txo qis.

Vim nws lub hauv paus me dua thiab ib hom kev nthuav dav, ib hom fiber tuaj yeem xa cov ntaub ntawv hla ntau qhov deb yam tsis poob qhov zoo ntawm lub teeb liab.

Ib hom fiber ntau tuaj yeem xa cov ntaub ntawv hla qhov deb xws li ob peb kilometers mus rau ntau pua kilometers yam tsis tas yuav tsum tau rov ua dua lossis ua kom nrov dua.

Nws feem ntau siv rau hauv kev sib txuas lus ntev, cov tes hauj lwm tseem ceeb, thiab cov ntawv thov xa cov ntaub ntawv ceev ceev.

Multimode Fiber:

Multimode fiber muaj lub hauv paus loj dua, feem ntau yog li ntawm 50 txog 62.5 microns.

Nws tso cai rau ntau hom teeb pom kev zoo kom nthuav dav, ua rau muaj kev sib kis ntau dua thiab txo qis piv rau cov fiber ntau hom.

Qhov loj dua ntawm lub hauv paus ua rau multimode fiber tsis haum rau kev sib kis mus ntev vim yog qhov modal dispersion, qhov twg ntau hom teeb pom kev tuaj txog ntawm tus txais ntawm lub sijhawm sib txawv, ua rau lub teeb liab puas tsuaj.

Multimode fiber feem ntau yog siv rau cov ntawv thov luv luv, xws li hauv cov tsev, cov tsev kawm ntawv, lossis cov chaw khaws ntaub ntawv.

Qhov nrug rau kev sib kis fiber ntau multimode yog txwv rau ntau pua meters txog ob peb kilometers, nyob ntawm hom fiber tshwj xeeb thiab qhov ceev ntawm kev xa cov ntaub ntawv.

Hauv kev xaus, ib hom fiber muaj kev sib kis ntev dua piv rau multimode fiber vim nws qhov me me dua thiab muaj peev xwm kis tau tsuas yog ib hom teeb. Ib hom fiber yog qhov zoo dua rau kev siv ntev, thaum multimode fiber yog qhov tsim nyog dua rau kev sib txuas luv dua hauv cov tsev lossis cov tsev kawm ntawv.