Mgbe voltaji na-agbakwunyere na electro-optic kristal, refractive index na ndị ọzọ ngwa anya Njirimara nke kristal mgbanwe, na-agbanwe polarization ọnọdụ nke ìhè ife efe, nke mere na okirikiri ìhè polarized ìhè na-aghọ elliptically polarized ìhè, wee ghọọ linearly polarized ìhè site polarizer, na ìhè ike na-modulated. N'oge a, ọkụ ọkụ nwere ozi ụda ma na-agbasa na oghere efu. A na-eji fotodetector na-anata akara ngosi anya modulated na ebe a na-anata, mgbe ahụ, a na-eme mgbanwe ntụgharị iji gbanwee akara ngosi anya na mgbaàmà eletrik. A na-eweghachi mgbama ụda site na demodulator, na n'ikpeazụ mgbasa ozi anya nke mgbaàmà ụda agwụla. Voltaji etinyere bụ mgbama ụda na-ebufe, nke nwere ike ịbụ mmepụta nke ihe ndekọ redio ma ọ bụ draịva teepu, ma bụrụ n'ezie mgbama voltaji na-agbanwe n'oge.