Kana iyo voltage yawedzerwa kune electro-optic crystal, iyo refractive index uye zvimwe zve optical zvimiro zvekristaro shanduko, shandura polarization mamiriro emwenje wave, kuitira kuti denderedzwa polarized mwenje unova elliptically polarized mwenje, uye wozoita linearly polarized mwenje kuburikidza nepolarizer, uye kusimba kwechiedza kunogadziriswa. Panguva ino, iyo mwenje wave ine ruzivo rwekurira uye inopararira munzvimbo yemahara. Iyo photodetector inoshandiswa kugamuchira iyo modulated optical chiratidzo panzvimbo yekugamuchira, uye ipapo kutendeuka kwedunhu kunoitwa kushandura chiratidzo chemaziso kuita chiratidzo chemagetsi. Chiratidzo chezwi chinodzoreredzwa nedemodulator, uye pakupedzisira kutapurirana kwechiratidzo chechiratidzo chinopedzwa. Iyo voltage inoshandiswa ndiyo inopfuudzwa inonzwika chiratidzo, inogona kuve kubuda kwerekodhi rekodhi kana tepi drive, uye ichokwadi chiratidzo chemagetsi chinosiyana nekufamba kwenguva.