Raws li qhov zoo tshaj plaws kis zaus ntawm lub qhov rais: cov pa hluav taws xob ib hom fiber ntau thiab kev tawg-hloov pauv ib hom fiber ntau.
Hom pa: cov chaw tsim hluav taws xob fiber ntau kho qhov muag cov fiber ntau xa mus rau ib qho yoj yoj ntawm lub teeb, xws li 1300nm.
Kev tawg ua haujlwm hom: Lub chaw tsim hluav taws xob kho qhov muag kho qhov muag tau muab cov kis hluav taws xob xa mus rau ob txoj kab hluav taws xob, xws li: 1300nm thiab 1550nm.
Abrupt hom: Qhov ntsuas tsis zoo ntawm qhov nruab nrab ntawm qhov tseem ceeb ntawm cov kho qhov muag mus rau lub khob iav tau maj mam, nrog tus nqi qis thiab siab sib cuam tshuam kev faib tawm, uas tsim nyog rau kev sib txuas lus luv luv thiab qis.
Graded fiber: Qhov ntsuas qhov txaus siab los ntawm lub chaw nruab nrab ntawm lub fiber mus rau lub iav cladding yog maj mam txo, uas tuaj yeem ua rau lub teeb tsa tau hom teeb pom kev zoo hauv daim ntawv sinusoidal. Qhov no tuaj yeem txo qhov kev cuam tshuam inter-mode, nce ntawm bandwidth, thiab nce cov kis ntawm, tab sis tus nqi yog siab dua. Mod fiber ntau yog feem ntau graded fibers.
