Mgbe etinyere voltaji na kristal electro-optic, ihe ngosi refractive na ihe ndị ọzọ dị na kristal na-agbanwe, na-agbanwe ọnọdụ polarization nke ebili mmiri ọkụ, nke mere na ìhè okirikiri polarized na-aghọ ìhè elliptical polarized, wee ghọọ ìhè kwụ ọtọ site na polarizer, a na-agbanwekwa ike ọkụ. N'oge a, ebili mmiri ọkụ nwere ozi ụda ma na-agbasa na oghere efu. A na-eji fotodetector anata akara ngosi anya modulated na ebe nnata, wee mee mgbanwe sekit iji gbanwee akara ngosi anya ka ọ bụrụ akara eletriki. A na-eweghachi akara ụda site na demodulator, n'ikpeazụ a na-emecha nnyefe anya nke akara ụda. Voltaji etinyere bụ akara ụda ebufere, nke nwere ike ịbụ mmepụta nke ihe ndekọ redio ma ọ bụ draịva teepu, ọ bụkwa n'ezie akara voltaji nke na-agbanwe ka oge na-aga.