Xa i-voltage yongezwa kwikristale ye-electro-optic, isalathiso se-refractive kunye nezinye iimpawu zokutshintsha kwekristale, tshintsha imeko ye-polarization yamaza okukhanya, ukuze ukukhanya okujikelezayo kube yi-elliptically polarized light, kwaye emva koko kube kukukhanya kwe-polarized linearly. ngokusebenzisa i-polarizer, kunye nokukhanya kokukhanya kuguqulwa.Ngeli xesha, i-wave wave iqulethe ulwazi oluvakalayo kwaye isasaza kwindawo yamahhala.I-photodetector isetyenziselwa ukufumana isignali ye-optical modulated kwindawo yokufumana, kwaye emva koko ukuguqulwa kwesekethe kuqhutyelwa ukuguqula isignali ye-optical ibe ngumqondiso wombane.Umqondiso wesandi ubuyiselwa yi-demodulator, kwaye ekugqibeleni ukuhanjiswa kwe-optical yesignali yesandi kugqityiwe.I-voltage esetyenzisiweyo sisignali yesandi edlulisiweyo, enokuthi ibe yimveliso yerekhoda yerediyo okanye i-tape drive, kwaye ngokwenene isignali yombane eguquguqukayo ngokuhamba kwexesha.