Kupu Whakataki
I te mea kua angitu ngā ara iahiko whakauru hiko (EIC), kua whanake haere te ao o ngā ara iahiko whakauru photonic (PIC) mai i tōna tīmatanga i te tau 1969. Heoi, he rerekē ki ngā EIC, he wero nui tonu te whakawhanake i tētahi tūāpapa whānui e kaha ana ki te tautoko i ngā tono photonic kanorau. Ka tūhuratia e tēnei tuhinga te hangarau Lithium Niobate on Insulator (LNOI) hou, kua tere te noho hei otinga whai hua mō ngā PIC o te whakatupuranga e whai ake nei.
Te Aranga Ake o te Hangarau LNOI
Kua roa te mōhiotia o te Lithium niobate (LN) hei rauemi matua mō ngā tono photonic. Heoi, nā te taenga mai o te LNOI kiriata-angiangi me ngā tikanga hanga matatau anake i huakina ai tōna pūmanawa katoa. Kua angitu te whakaatu a ngā kairangahau i ngā arataki ngaru o te tihi tino iti te ngaronga me ngā microresonators Q tino teitei i runga i ngā papaaho LNOI [1], he tohu nui tēnei i roto i te photonics whakauru.
Ngā Painga Matua o te Hangarau LNOI
- Ngaronga whatu tino iti(tae noa ki te 0.01 dB/cm)
- Ngā hanganga nanophotonic kounga teitei
- Tautoko mō ngā tukanga whatu kore-raina kanorau
- Te āheinga whakauru ki te whakarerekētanga hiko-whatu (EO)
Ngā Tukanga Whatu Kore-Raina i runga i te LNOI
Ko ngā hanganga nanophotonic mahi-teitei i hangaia i runga i te tūāpapa LNOI ka taea te whakatinana i ngā tukanga whatu kore-raina matua me te tino whai hua me te iti o te mana papu. Ko ngā tukanga kua whakaaturia ko:
- Te Whakatipuranga Harmonic Tuarua (SHG)
- Te Whakaputa Auautanga Tapeke (SFG)
- Te Whakaputa Auautanga Rerekētanga (DFG)
- Tahuritanga-Whakararo Tawhā (PDC)
- Te Whakaranu Ngāru-Whā (FWM)
Kua whakatinanahia ngā kaupapa taurite-wāhanga hei arotau i ēnei tukanga, ā, kua whakatūria te LNOI hei tūāpapa whatu kore-raina tino maha ngā whakamahinga.
Ngā Pūrere Whakauru Ka Taea te Whakarerekē Hiko-Whiti
Nā te hangarau LNOI anō hoki i taea ai te whakawhanake i te whānuitanga o ngā taputapu whakaahua ka taea te whakarerekē kaha me te kore mahi, pēnei i:
- Ngā whakarerekētanga whatu tere-teitei
- Ngā PIC maha-mahi ka taea te whirihora anō
- Ngā heru auau ka taea te whakarerekē
- Ngā puna moroiti-hangarau
Ka whakamahia e ēnei taputapu ngā āhuatanga EO o te lithium niobate hei whakatutuki i te whakahaere tika, tere-teitei o ngā tohu mārama.
Ngā Whakamahinga Whaihua o te LNOI Photonics
Kei te piki haere te whakamahinga o ngā PIC e hangai ana ki te LNOI i roto i te maha o ngā tono mahi, tae atu ki:
- Ngā kaitahuri ngaruiti-ki-whatu
- Ngā pūoko whatu
- Ngā ine ā-maramara
- Heru auau whatu
- Ngā pūnaha whakawhitiwhiti kōrero matatau
E whakaatu ana ēnei tono i te kaha o te LNOI ki te taurite i te mahi a ngā wāhanga whatu-papatipu, me te tuku hoki i ngā otinga tauine-rahi, whai hua-pūngao mā te hanga whakaahua-whakaahua.
Ngā Wero o Nāianei me ngā Aronga o te Ao
Ahakoa tōna ahunga whakamua whai hua, he maha ngā arai hangarau e pā ana ki te hangarau LNOI:
a) Te Whakaiti Anō i te Ngaronga Whatu
Ko te ngaronga o te arataki ngaru o nāianei (0.01 dB/cm) he nui ake tonu i te rohe mimiti rauemi. Me ahu whakamua ngā tikanga tapahi katote me te hanga nano hei whakaiti i te taratara o te mata me ngā hapa e pā ana ki te mimiti.
b) Te Whakahaere Āhuahanga Aratohu Ngaru Kua Whakapaitia
He mea nui te whakahohe i ngā arataki ngaru i raro i te 700 nm me ngā āputa hononga i raro i te 2 μm, me te kore e whakaiti i te āheinga whakahoki, te whakanui rānei i te ngaronga horapa, kia nui ake ai te mātotoru whakauru.
c) Te Whakapai Ake i te Whai Hua o te Hononga
Ahakoa e āwhina ana ngā muka whakarara me ngā kaitahuri aratau ki te whakatutuki i te pai o te hononga, ka taea e ngā paninga ārai-whakaata te whakaiti i ngā whakaata atanga hau-rauemi.
d) Te Whakawhanaketanga o ngā Wāhanga Whakapūtanga Ngaronga-Iti
He mea nui ngā taputapu whakaahua kore-polarization i runga i te LNOI, e hiahia ana i ngā waahanga e rite ana ki te mahi a ngā polarization mokowā-kore.
e) Te Whakaurunga o ngā Hikohiko Whakahaere
Ko te whakauru tika i ngā taputapu hiko whakahaere nui-rahi, me te kore e whakaiti i te mahi whatu, he huarahi rangahau matua tēnei.
f) Te Hangarau Taurite Wāhanga Matatau me te Marara
He mea nui te tauira rohe pono i te taumira iti-micron mō ngā whatu kore-raina engari he hangarau kāore anō kia pakari i runga i te tūāpapa LNOI.
g) Te Whakautu mō ngā Koha Hanga
He mea nui ngā tikanga hei whakaiti i ngā nekehanga ā-wāhanga i puta mai i ngā huringa taiao, i ngā rerekētanga hanga rānei, mō te whakatinanatanga i te ao tūturu.
h) Hononga Maramara Maha Whai Hua
He mea tika kia aro atu ki te hononga whai hua i waenga i ngā maramara LNOI maha kia taea ai te whakawhānui ake i ngā rohe whakaurunga angiangi kotahi.
Te Whakaurunga Kotahi o ngā Wāhanga Kaha me ngā Wāhanga Kore
Ko tētahi wero matua mō ngā LNOI PIC ko te whakaurunga kotahi-whai hua o ngā wāhanga hohe me ngā wāhanga kore-hohe pēnei i:
- Ngā Reera
- Ngā Pūoko
- Ngā kaitahuri roangaru kore-raina
- Ngā Pūwhakarerekētanga
- Ngā Pūwhakarea/Ngā Pūwhakarea
Ko ngā rautaki o nāianei ko:
a) Te Tāpiritanga Katote o te LNOI:
Mā te tāpiritanga whiriwhiri o ngā katote hohe ki ngā rohe kua tohua ka hua ake he pūtake mārama kei runga i te maramara.
b) Te Hononga me te Whakaurunga Rerekē:
Mā te here i ngā LNOI PIC kore mahi kua oti te hanga ki ngā paparanga LNOI kua tāpirihia, ki ngā taiaho III-V rānei, ka puta he ara rerekē.
c) Te Hanganga o te Wafer LNOI Kaha/Pahekoheko Ranu:
Ko tētahi huarahi auaha ko te herea o ngā papa LN kua tāpirihia me ngā papa kāore i tāpirihia i mua i te tapatapahi i te katote, ka hua ake he papa LNOI me ngā rohe hohe me ngā rohe kore hohe.
Pikitia 1e whakaatu ana i te ariā o ngā PIC hohe/kore whakauru ranu, ina taea ai e te tukanga tuhi kotahi te whakarite me te whakauru maeneene o ngā momo wāhanga e rua.
Te Whakaurunga o ngā Pūoko Whakaahua
Ko te whakauru i ngā taputapu whakaahua ki roto i ngā PIC e hangai ana ki te LNOI tētahi atu taahiraa nui ki te whakatutuki i ngā pūnaha mahi katoa. E rua ngā huarahi matua kei te tirotirohia:
a) Whakaurunga Rerekē:
Ka taea te hono atu i ngā hanganga nano haurua-arataki ki ngā arataki-ngaru LNOI mō tētahi wā poto. Heoi anō, me whakapai tonu te whai huatanga o te kimi me te kaha ki te whakawhanui.
b) Te Huringa Roangaru Kore-Raina:
Mā ngā āhuatanga kore-raina o LN ka taea te huri auau i roto i ngā arataki ngaru, ka taea ai te whakamahi i ngā taputapu whakaahua silicon paerewa ahakoa te roanga ngaru mahi.
Whakamutunga
Nā te tere o te whanaketanga o te hangarau LNOI, ka tata te umanga ki tētahi tūāpapa PIC whānui e taea ai te whakatutuki i ngā momo tono. Mā te aro atu ki ngā wero o nāianei me te whakatairanga i ngā auahatanga i roto i te whakaurunga monolithic me te detector, ka taea e ngā PIC e hangai ana ki te LNOI te huri i ngā mara pēnei i te whakawhitiwhiti kōrero, te mōhiohio irahiko, me te ine.
Kei a LNOI te oati ki te whakatutuki i te moemoeā roa o ngā PIC tauine, me te rite ki te angitu me te pānga o ngā EIC. Ko ngā mahi R&D tonu—pērā i ngā mea mai i te Nanjing Photonics Process Platform me te XiaoyaoTech Design Platform—ka whai wāhi nui ki te hanga i te heke mai o ngā photonics whakauru me te iriti i ngā mea hou puta noa i ngā mara hangarau.
Te wā tuku: Hurae-18-2025