Mgbe agbakwunyere voltaji na kristal electro, ntinye aka na-adịghị mma na ngwa ọdịnala ndị ọzọ na-anyụ ellized polized ọkụ site na polarizer, ma na-emebi ike ọkụ. N'oge a, ọkụ ahụ nwere ụda dị mma ma na-agbasa n'efu. A na-eji PhotoDetector iji nweta akara anya dị anya na ebe anata ya, wee mezue ntụgharị sekit iji gbanwee akara aka na eletriki. A na-emecha ụda akara ụda ahụ site na ngosi ngosi ahụ, n'ikpeazụkwa mgbasa ozi nke ụda ụda ahụ. Igwe ọkụ ahụ etinyere bụ akara ụda ụda, nke nwere ike ịbụ mmepụta nke teepu redio ma ọ bụ draịvụ teepu, ma bụ n'ezie mgbaàmà voltaji dị iche iche n'oge.