Taw qhia optical fiber ntau
Optical fiber yog qhov khoom xa tawm nruab nrab ntawm kev sib txuas lus fiber ntau. Muaj ib lub teeb nyob rau ntawm qhov kis tau tus mob kawg. Lub teeb hluav taws xob uas siv hluav taws xob ua hluav taws xob lossis cov tshuab hluav taws xob kom siv tau. Lawv tuaj yeem tsim cov hluav taws xob pulses raws li kev txiav txim ntawm cov hluav taws xob pulses. Thaum txais qhov kawg, photodiode siv los ua lub ntsuas hluav taws xob, uas tuaj yeem rov kho hluav taws xob thaum pom lub teeb pom kev.