Chiratidzo cheOptical chinoshandurwa kuita chiratidzo chazvino nekuisa optical fiber.Iyo Si PIN module ine pre-amplification wedunhu iyo inogonesa isina simba ikozvino chiratidzo kuti ikwidziridzwe uye ichinje kune voltage siginecha kuti iwane kushandura maitiro ephoton-photoelectric-signal amplification.