Mitundu ya ma modulators a electro-optic yafotokozedwa mwachidule

Chowongolera chamagetsi ndi kuwala (electro-optical modulator)EOM) imalamulira mphamvu, gawo ndi polarization ya kuwala kwa laser mwa kulamulira chizindikiro pakompyuta.
Chosavuta kwambirimodulator yamagetsindimodulator ya gawoYopangidwa ndi bokosi limodzi lokha la Pockels, pomwe mphamvu yamagetsi (yogwiritsidwa ntchito pa kristalo ndi electrode) imasintha kuchedwa kwa gawo la kuwala kwa laser ikalowa mu kristalo. Mkhalidwe wa polarization wa kuwala kwa chochitika nthawi zambiri umafunika kufanana ndi imodzi mwa nkhwangwa zowala za kristalo kuti mkhalidwe wa polarization wa kuwala usasinthe.

Nthawi zina pamafunika kusintha pang'ono kwambiri kwa gawo (periodic kapena aperiodic). Mwachitsanzo, EOM imagwiritsidwa ntchito nthawi zambiri kuwongolera ndikukhazikitsa ma resonant frequency a optical resonators. Ma resonance modulators nthawi zambiri amagwiritsidwa ntchito pazochitika zomwe pamafunika kusintha pang'ono, ndipo kuzama kwakukulu kwa modulation kungapezeke ndi voltage yoyendetsa pang'ono. Nthawi zina kuzama kwa modulation kumakhala kwakukulu kwambiri, ndipo sidelobe yambiri (light comb generator, light comb) imapangidwa mu spectrum.

Chosinthira kugawanika
Kutengera mtundu ndi komwe kristalo yosakhala yolunjika ikupita, komanso komwe mphamvu yamagetsi yeniyeni ikupita, kuchedwa kwa gawo kumakhudzananso ndi komwe kristalo imapita. Chifukwa chake, bokosi la Pockels limatha kuwona mafunde olamulidwa ndi ma voltage ambiri, ndipo lingagwiritsidwenso ntchito kusintha momwe polarisation imakhalira. Pa kuwala kolowera kolumikizidwa ndi ma linearly polarized (nthawi zambiri pa Angle ya 45° kuchokera ku crystal axis), polarization ya kuwala kotuluka nthawi zambiri imakhala yozungulira, m'malo mongozunguliridwa ndi Angle kuchokera ku kuwala koyambirira kozungulira.

Chowongolera kuchuluka kwa mphamvu
Akaphatikizidwa ndi zinthu zina zowunikira, makamaka ndi ma polarizer, mabokosi a Pockels angagwiritsidwe ntchito pazinthu zina zosinthira. Chowongolera cha amplitude chomwe chili mu Chithunzi 2 chimagwiritsa ntchito bokosi la Pockels kusintha mkhalidwe wa polarization, kenako chimagwiritsa ntchito polarizer kusintha kusintha kwa mkhalidwe wa polarization kukhala kusintha kwa amplitude ndi mphamvu ya kuwala kotumizidwa.
Ma modulators a electro-optic omwe amagwiritsidwa ntchito nthawi zambiri ndi awa:
Kusintha mphamvu ya kuwala kwa laser, mwachitsanzo, posindikiza ndi laser, kujambula deta ya digito mwachangu, kapena kulumikizana kwa kuwala mwachangu;
Amagwiritsidwa ntchito mu njira zokhazikika za laser frequency, mwachitsanzo, pogwiritsa ntchito njira ya Pound-Drever-Hall;
Ma switch a Q mu ma laser olimba (komwe EOM imagwiritsidwa ntchito kutseka resonator ya laser isanayambe pulsed radiation);
Kutseka kwa mode yogwira ntchito (kutayika kwa EOM modulation cavity kapena gawo la kuwala kobwerera, ndi zina zotero);
Kusintha ma pulse mu ma pulse pickers, ma positive feedback amplifiers ndi ma tilting lasers.