1.optical fiber core qauv
1) Core: siab refractive index, siv los xa lub teeb;
2) Cladding: qis refractive index, tsim tag nrho cov kev xav ntawm lub hauv paus;
3) Kev tiv thaiv txheej: tiv thaiv cov fiber ntau optical.
2.Ib hom thiab ntau hom
Tsuas yog ib hom ntawm lub teeb tuaj yeem kis tau.Yog li ntawd, nws inter-mode dispersion yog me me thiab haum rau kev sib txuas lus tej thaj chaw deb, tab sis kuj muaj cov khoom dispersion thiab waveguide dispersion.Nyob rau hauv txoj kev no, ib hom fiber ntau muaj qhov xav tau ntau dua rau qhov dav dav thiab kev ruaj ntseg ntawm lub teeb ci, uas yog, qhov dav spectral yuav tsum nqaim thiab ruaj khov zoo dua.Ib hom fiber ntau muaj xoom tag nrho dispersion.
Muaj peev xwm kis tau ntau hom teeb.Txawm li cas los xij, nws qhov sib txawv ntawm qhov sib txawv yog qhov loj, uas txwv qhov zaus ntawm kev xa cov cim digital, thiab nws yuav dhau los ua qhov hnyav dua nrog kev nce ntxiv.Multi-mode fiber kis tau tus mob nyob deb yog luv luv, feem ntau tsuas yog ob peb kilometers.
Cov cuab yeej siv hom ib leeg tuaj yeem khiav ntawm ib hom fiber ntau lossis ntau hom fiber ntau, thaum cov khoom siv ntau hom tsuas yog siv rau kev khiav ntawm ntau hom fiber ntau.