Te ahunga whakamua rangahau okiriata angiangi lithium niobate electro-optic modulator
Ko te modulator electro-optic te taputapu matua o te punaha korero whatu me te punaha photonic ngaruiti. Ka whakatauhia te marama e toha ana i te waahi waatea, i te kaiarahi ngaru whatu ranei ma te huri i te taurangi whakaata o nga rawa i puta mai i te mara hiko. Ko te lithium niobate tuku ihomodulator hiko-whatuka whakamahia te nuinga o nga rauemi lithium niobate hei taonga hiko-ahua. Ko te mea kotahi te karaihe lithium niobate he mea hangai i te rohe ki te hanga i te kaiarahi ngaru na roto i te titanium diffusion, i te huringa proton exchange ranei. He iti rawa te rereketanga o te tohu tohu i waenga i te paparanga matua me te paparanga whakakikorua, a he ngoikore te kaha o te kaiarahi ngaru ki te here ki te mara marama. Ko te roa katoa o te takahuri hiko-whakaahua ko te tikanga 5~10 cm.
Ko te hangarau Lithium Niobate on Insulator (LNOI) e whakarato ana i te huarahi whai hua ki te whakaoti i te raruraru o te rahi nui o te lithium niobate electro-optic modulator. Ko te rereketanga o te tohu tohu i waenga i te paparanga matua o te kaiarahi ngaru me te paparanga whakakikorua kua eke ki te 0.7, ka tino whakanui ake i te kaha here aratau whatu me te mana whakahaere hiko-a-ringa o te kaiarahi ngaru, a kua noho hei waahi rangahau i roto i te mara o te whakahurihuri hiko.
Na te ahunga whakamua o te hangarau miihini moroiti, kua tere te ahunga whakamua o te whanaketanga o nga miihini hiko-optic i runga i te papaaho LNOI, e whakaatu ana i te ahua o te rahi kiato me te whakapai tonu o te mahi. E ai ki te hanganga arataki ngaru e whakamahia ana, ko nga tauira angiangi o te kiriata lithium niobate electro-optic modulators he mea mau tonu ki nga kaiwhakatakoto hiko-optic, he ranu utaina.kaiarahi ngaru modulatorsme nga kaitahuri hiko-a-te-a-rangi kua whakauruhia.
I tenei wa, ko te whakapai ake i te tukanga tarai maroke ka tino whakaiti i te ngaro o te kiriata angiangi lithium niobate waveguide, ko te tikanga uta hiwi e whakaoti ana i te raru o te uaua o te tukanga etching teitei, a kua mohio ki te lithium niobate electro-optic modulator me te ngaohiko iti iho i te 1 V te haurua ngaru, me te whakakotahitanga me te hangarau SOI pakeke e rite ana ki te ahua o te whakakotahitanga o te photon me te hikohikohikohikohikohikohikohikohikohikohikohikohikohikohikohikohikohikohikohiko. Ko te hangarau lithium niobate kiriata angiangi he painga ki te mohio ki te iti o te mate, te rahi iti me te nui o te bandwidth whakauru i te modulator electro-optic i runga i te maramara. Ariaria, e matapaetia ana ko te 3mm kiriata angiangi lithium niobate pana-kumeM⁃Z modulator'sKa taea e te 3dB te peera hiko-a-rangi te eke ki te 400 GHz, a ko te bandwidth o te tauira angiangi kiriata lithium niobate modulator kua oti te whakarite kua panuitia he neke atu i te 100 GHz, kei tawhiti tonu i te rohe o runga ake. Ko te whakapai ake i kawea mai e te arotau i nga tawhā hanganga taketake he iti. I te wa kei te heke mai, mai i te tirohanga ki te torotoro i nga tikanga me nga hanganga hou, penei i te hoahoa i te hiko o te kaitarai ngaru coplanar paerewa hei hikoi ngaruiti kua wehea, ka pai ake pea te mahi a te kaihurihuri.
I tua atu, ko te whakatinanatanga o te kohinga maramara modulator whakauru me te whakakotahi i runga i te maramara me nga lasers, nga kaitirotiro me etahi atu taputapu he waahi me te wero mo te whanaketanga a meake nei o nga kiriata angiangi lithium niobate modulators. Ko te kiriata angiangi lithium niobate electro-optic modulator ka nui ake te mahi i roto i te ngaruiti photon, te whakawhitiwhiti korero me etahi atu mara.
Wā tuku: Apr-07-2025