nws realization ntawm optical fiber kev sib txuas lus yog raws li lub hauv paus ntsiab lus ntawm tag nrho cov reflection ntawm lub teeb.
Thaum lub teeb propagates mus rau hauv nruab nrab ntawm lub optical fiber, qhov refractive Performance index n1 ntawm cov tub ntxhais fiber ntau yog siab dua li ntawm cladding n2, thiab qhov poob ntawm cov tub ntxhais yog qis dua qhov cladding, yog li ntawd lub teeb yuav undergo tag nrho reflection. , thiab nws lub teeb lub zog yog kis tau los ntawm cov tub ntxhais. Vim tag nrho cov reflections ua tiav, lub teeb tuaj yeem kis tau los ntawm ib qho kawg mus rau lwm qhov.
Muab faib los ntawm hom kis tau tus mob: ib hom thiab ntau hom.
Tib hom muaj ib txoj kab uas hla me me thiab tsuas yog kis tau lub teeb nthwv dej ntawm ib hom.
Multi-mode optical fiber muaj ib txoj kab uas hla loj thiab tuaj yeem xa cov teeb tsis muaj zog hauv ntau hom.
Peb kuj tuaj yeem paub qhov txawv ib hom optical fiber ntau los ntawm ntau hom optical fiber ntau los ntawm cov xim ntawm cov tsos.
Feem ntau ib hom optical fibers muaj lub tsho daj thiab lub tsho xiav txuas, thiab cov tub ntxhais cable yog 9.0 μm. Muaj ob lub nruab nrab wavelengths ntawm ib hom fiber ntau: 1310 nm thiab 1550 nm. 1310 nm feem ntau yog siv rau kev sib kis luv luv, nruab nrab-nruab nrab lossis kev ncua deb, thiab 1550 nm yog siv rau kev sib kis mus ntev thiab ultra-ntev-ntev. Qhov kev ncua deb ntawm qhov sib kis yog nyob ntawm lub zog xa mus ntawm optical module. Qhov kev ncua deb ntawm 1310 nm ib hom chaw nres nkoj yog 10 km, 30 km, 40 km, thiab lwm yam, thiab kev sib kis ntawm 1550 nm ib hom chaw nres nkoj yog 40 km, 70 km, 100 km, thiab lwm yam.
Multi-mode optical fibers feem ntau yog txiv kab ntxwv / grey tsho nrog dub / beige connectors, 50.0 μm thiab 62.5 μm cores. Qhov nruab nrab wavelength ntawm ntau hom fiber ntau yog 850 nm. Kev sib kis ntawm ntau hom fiber ntau yog luv luv, feem ntau tsis pub dhau 500 m.
Post lub sij hawm: Feb-17-2023