Ngwa nke Modulation Electro-Optic na Nkwukọrịta ngwa anya

/ngwa-nke-electro-optic-modulation-na-optical-nkwurịta okwu/

Sistemu na-eji ebili mmiri ọkụ na-ebufe ozi ụda. Laser nke laser na-emepụta na-aghọ ìhè nke na-egbuke egbuke mgbe onye na-emepụta ihe gasịrị, wee ghọọ ọkụ ọkụ na-egbuke egbuke mgbe efere λ / 4 gasịrị, nke mere na akụkụ abụọ nke polarization (o ìhè na e ìhè) na-emepụta ọdịiche π / 2 tupu ịbanye kristal electro-optical, nke mere na modulator na-arụ ọrụ na mpaghara ahịrị dị nso. N'otu oge ahụ ka laser na-agafe na electro-optic crystal, a na-etinye voltaji dị n'èzí na kristal electro-optic. Voltaji a bụ mgbama ụda a ga-ebunye.

Mgbe a na-agbakwunye voltaji na kristal electro-optic, ihe ntụgharị refractive na ihe ndị ọzọ na-ahụ anya nke kristal na-agbanwe, na-agbanwe ọnọdụ polarization nke ọkụ ọkụ, nke mere na ìhè nke na-egbuke egbuke na-aghọ ìhè elliptically, wee ghọọ ìhè ọkụ ọkụ. site na polarizer, na ike ọkụ na-agbanwe. N'oge a, ọkụ ọkụ nwere ozi ụda ma na-agbasa na oghere efu. A na-eji fotodetector na-anata akara ngosi anya modulated na ebe a na-anata, mgbe ahụ, a na-eme mgbanwe ntụgharị iji gbanwee akara ngosi anya na mgbaàmà eletrik. A na-eweghachi mgbama ụda site na demodulator, na n'ikpeazụ mgbasa ozi anya nke mgbaàmà ụda agwụla. Voltaji etinyere bụ mgbama ụda na-ebufe, nke nwere ike ịbụ mmepụta nke ihe ndekọ redio ma ọ bụ draịva teepu, ma bụrụ n'ezie mgbama voltaji na-agbanwe n'oge.