Lub fiber ntau yog ib qho nyias nyias, mos mos rau kev xa cov teeb ci.
Lub khoos phis tawm ntawm cov khoom siv kho qhov muag cable muaj cov pob ntawm cov fibers, raug xa mus rau cov khoom siv kho qhov muag. Cov fiber ntau yog cov tseem ceeb ntawm lub qhov muag cable, fiber ntau los ntawm qee qhov kev tiv thaiv ntawm txheej tiv thaiv yog tsim los ntawm kho qhov muag cable.
Lub tog raj kheej kho qhov muag feem ntau yog ua los ntawm quartz iav, nws cov ntoo khaub lig} qhov chaw muaj zog me me, nws yog qhov kev ntxhib los mos, yooj yim rau tawg.