Xa i-voltage yongezwa kwikristale ye-electro-optic, isalathiso se-refractive kunye nezinye iipropathi zokukhanya zokutshintsha kwekristale, tshintsha imeko ye-polarization yamaza okukhanya, ukuze ukukhanya okujikelezayo okujikelezayo kube kukukhanya kwe-elliptically polarized, kwaye emva koko kube kukukhanya komgca we-polarized ngokusebenzisa i-polarizer, kunye nokukhanya kokukhanya kumodulated. 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 kwisignali yombane. 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.