Ha motlakase o eketsoa ho kristale ea electro-optic, index ea refractive le litšobotsi tse ling tsa optical tsa kristale lia fetoha, li fetola boemo ba polarization ba leqhubu la leseli, e le hore leseli le chitja le nang le polarized le fetohe leseli le nang le polarized elliptically, ebe le fetoha leseli le nang le polarized linearly ka har'a polarizer, 'me matla a khanya a fetoloa. Nakong ena, leqhubu la leseli le na le tlhahisoleseling ea molumo 'me le ata sebakeng se lokolohileng. Photodetector e sebelisoa ho amohela lets'oao la optical le fetotsoeng sebakeng seo le amohelang ho sona, ebe phetoho ea potoloho e etsoa ho fetola lets'oao la optical hore e be lets'oao la motlakase. Lets'oao la molumo le tsosolosoa ke demodulator, 'me qetellong phetiso ea optical ea lets'oao la molumo e phethetsoe. Voltage e sebelisitsoeng ke lets'oao la molumo le fetisoang, e ka bang tlhahiso ea serekoto sa seea-le-moea kapa tape drive, 'me ha e le hantle ke lets'oao la voltage le fetohang ha nako e ntse e ea.




