Mapulogalamu atsopano a Electro-Optic phase modulator

Mapulogalamu atsopano aElectro-Optic modulator ya gawo

LiNbO3 modulatorPhase modulator ndi chinthu chofunikira chomwe chingathe kuwongolera kusintha kwa gawo la mafunde a kuwala, ndipo chimagwira ntchito yofunika kwambiri pakulankhulana kwamakono ndi kuzindikira. Posachedwapa, mtundu watsopano wamodulator ya gawoyakopa chidwi cha ofufuza ndi mainjiniya, omwe amagwira ntchito pa mafunde atatu a 780nm, 850nm ndi 1064nm, ndi ma bandwidth osinthira mpaka 300MHz, 10GHz, 20GHz ndi 40GHz.

Chofunika kwambiri pa gawo la modulator iyi ndi kuchuluka kwa bandwidth yosinthira komanso kuchepa kwa kuyika. Kutayika kwa kuyika kumatanthauza kuchepa kwa mphamvu kapena mphamvu ya chizindikiro cha kuwala pambuyo podutsa mu modulator. Kutayika kwa kuyika kwa gawo la modulator iyi ndi kochepa kwambiri, zomwe zimatsimikizira umphumphu wa chizindikirocho, kuti chizindikirocho chikhalebe ndi mphamvu yayikulu pambuyo poyika.

Kuphatikiza apo, gawo modulator lili ndi khalidwe la voltage yotsika ya theka la mafunde. Voltage ya theka la mafunde ndi voltage yomwe imayenera kugwiritsidwa ntchito pa modulator kuti isinthe gawo la kuwala ndi madigiri 180. Voltage yotsika ya theka la mafunde imatanthauza kuti voltage yotsika yokha ndiyo imafunika kuti pakhale kusintha kwakukulu mu gawo la kuwala, zomwe zimachepetsa kwambiri kugwiritsa ntchito mphamvu kwa chipangizocho.

Ponena za magawo ogwiritsira ntchito, gawo latsopanoli lingagwiritsidwe ntchito kwambiri pozindikira ulusi wowala, kulumikizana ndi ulusi wowala, kuchedwa kwa gawo (shifter), ndi kulumikizana kwa quantum. Mu kuzindikira ulusi wowala, gawo lowongolera limatha kusintha kukhudzidwa ndi kutsimikiza kwa sensa. Mu kulumikizana ndi ulusi wowala, limatha kusintha liwiro la kulumikizana ndi kugwiritsa ntchito bwino deta. Mu kuchedwa kwa gawo (shifter), limatha kuwongolera bwino komwe kuwala kumafalikira; Mu kulumikizana kwa quantum, lingagwiritsidwe ntchito kuwongolera ndikusintha momwe quantum imagwirira ntchito.

Ponseponse, gawo latsopano la modulator limatipatsa njira zowongolera kuwala zogwira mtima komanso zolondola, zomwe zibweretsa kusintha kwakukulu m'magawo ambiri. Tikuyembekeza kuti ukadaulo uwu udzapitilizidwa kupangidwanso ndi kukonzedwanso mtsogolo, kutiwulula zinsinsi zambiri za kuwala kwa ife.