Thaum lub voltage ntxiv rau lub electro-optic siv lead ua, lub refractive index thiab lwm yam khoom kho qhov muag ntawm lub siv lead ua hloov, hloov lub polarization lub xeev ntawm lub teeb yoj, thiaj li hais tias lub voj voog polarized lub teeb yuav elliptical polarized lub teeb, thiab ces yuav linearly polarized lub teeb. los ntawm lub polarizer, thiab lub teeb siv yog modulated.Lub sijhawm no, lub teeb yoj muaj cov ntaub ntawv suab thiab nthuav tawm hauv qhov chaw dawb.Lub photodetector yog siv los txais cov teeb liab modulated optical ntawm qhov chaw txais, thiab tom qab ntawd qhov kev hloov pauv hauv Circuit Court yog nqa tawm los hloov cov teeb liab kho qhov muag rau hauv hluav taws xob teeb liab.Lub suab teeb liab yog rov qab los ntawm demodulator, thiab thaum kawg qhov kho qhov muag kis tau tus mob ntawm lub suab teeb liab tiav.Cov hluav taws xob siv hluav taws xob yog lub teeb liab kis tau tus mob, uas tuaj yeem yog qhov tso tawm ntawm lub xov tooj cua recorder lossis daim kab xev tsav, thiab qhov tseeb yog lub teeb liab hluav taws xob sib txawv raws sijhawm.