Te ahunga whakamua o te rangahaute whakarerekētanga hiko-whatu lithium niobate kiriata angiangi
Ko te whakarerekētanga hiko-whatu te taputapu matua o te pūnaha whakawhitiwhiti whatu me te pūnaha whakaahua ngaruiti. Ka whakahaere i te horapa o te mārama i roto i te wāhi kore utu, i te arataki ngaru whatu rānei mā te whakarerekē i te taupū whakaata o te rauemi i puta mai i te mara hiko kua whakamahia. Ko te lithium niobate tuku ihokaiwhakarerekē hiko-whatuKa whakamahia te rauemi lithium niobate papatipu hei rauemi hiko-whatu. Ka tāpirihia te rauemi lithium niobate tioata kotahi ki te hanga arataki ngaru mā te tukanga tohatoha titanium, te whakawhiti proton rānei. He iti noa te rerekētanga o te taupū whakaata i waenga i te paparanga matua me te paparanga whakakikorua, ā, he ngoikore te kaha o te arataki ngaru ki te here i te mara mārama. Ko te roa katoa o te modulator hiko-whatu kua tākaihia he 5~10 cm te nuinga.
Mā te hangarau Lithium Niobate on Insulator (LNOI) ka whai hua te whakaoti rapanga o te rahi nui o te lithium niobate electro-optic modulator. Ko te rerekētanga o te taupū whakaata i waenga i te paparanga matua o te arataki ngaru me te paparanga whakakikorua e tae atu ana ki te 0.7, e tino whakarei ake ana i te kaha here aratau whatu me te pānga whakahaere hiko-whatu o te arataki ngaru, ā, kua noho hei wāhi rangahau i roto i te mara o te electro-optical modulator.
Nā te ahunga whakamua o te hangarau miihini-iti, kua tere te whanaketanga o ngā kaiwhakatikatika hiko-whatu i runga i te tūāpapa LNOI, e whakaatu ana i te ia o te rahi kiato me te whakapai tonu i te mahi. E ai ki te hanganga arataki ngaru e whakamahia ana, ko ngā kaiwhakatikatika hiko-whatu lithium niobate kiriata angiangi noa he kaiwhakatikatika hiko-whatu arataki ngaru kua whakairohia tika, he ranu utaina.ngā kaiwhakarerekētanga arataki ngarume ngā whakarerekētanga hiko-whatu whakauru silicon ranu.
I tēnei wā, mā te whakapai ake i te tukanga whakairo maroke ka tino whakaiti i te ngaronga o te arataki ngaru o te kiriata angiangi lithium niobate, ka whakatauhia e te tikanga uta hiwi te raruraru o te uauatanga o te tukanga whakairo, ā, kua tutuki te modulator hiko-whatu lithium niobate me te ngaohiko iti iho i te 1 V haurua ngaru, ā, ko te whakakotahitanga me te hangarau SOI pakeke e tutuki ana i te ia o te whakaurunga ranu photon me te irahiko. He painga te hangarau lithium niobate kiriata angiangi ki te whakatutuki i te ngaronga iti, te rahi iti me te whānui whānui o te modulator hiko-whatu whakauru i runga i te maramara. I roto i te ariā, e matapaetia ana ko te kiriata angiangi lithium niobate 3mm ka pana-tōia.Ngā whakarerekētanga M⁃ZKa taea e te whānui o te hiko-whatu 3dB te eke ki te 400 GHz, ā, kua pūrongohia te whānui o te pūwhakarerekētanga lithium niobate kiriata angiangi i whakaritea i roto i te whakamātautau he iti noa iho i te 100 GHz, he tawhiti tonu tēnei i te rohenga o runga o te ariā. He iti noa te whakapainga i puta mai i te arotau i ngā tawhā hanganga taketake. I te heke mai, mai i te tirohanga o te tūhura i ngā tikanga me ngā hanganga hou, pērā i te hoahoa i te hiko arataki ngaru papatahi paerewa hei hiko ngaruiti wāhanga, tera pea ka whakapai ake i te mahi a te pūwhakarerekētanga.
Hei tāpiritanga, ko te whakatinanatanga o te takai maramara whakarerekētanga whakauru me te whakaurunga kanorau i runga i te maramara me ngā taiaho, ngā pūoko me ētahi atu taputapu he whai wāhitanga, he wero hoki mō te whanaketanga o ngā whakarerekētanga kiriata angiangi lithium niobate ā muri ake nei. Ka nui ake te mahi a te whakarerekētanga hiko-whatu lithium niobate kiriata angiangi i roto i te photon ngaruiti, te whakawhitiwhiti kōrero whatu me ētahi atu mara.
Wā tuku: Paenga-whāwhā-07-2025