Pūwhakarerekētanga hiko-whatu tere teitei o te lithium tantalate (LTOI)

Tere tere o te lithium tantalate (LTOI)kaiwhakarerekē hiko-whatu

Kei te tipu haere tonu te haere o ngā raraunga o te ao, nā te whānui o te whakamahinga o ngā hangarau hou pēnei i te 5G me te matauranga horihori (AI), e whakararu nui ana i ngā kaiwhakawhitiwhiti i ngā taumata katoa o ngā whatunga whatu. Ina koa, ko te hangarau whakarerekētanga hiko-whatu o te whakatupuranga e whai ake nei me whakapiki ake i ngā tere whakawhiti raraunga ki te 200 Gbps i roto i te hongere kotahi, me te whakaiti i te whakapaunga pūngao me ngā utu. I ngā tau kua pahure ake nei, kua whānuitia te whakamahinga o te hangarau silicon photonics i roto i te mākete whakawhiti raraunga whatu, nā te mea ka taea te whakaputa papatipu i ngā silicon photonics mā te whakamahi i te tukanga CMOS pakeke. Heoi, ko ngā whakarerekētanga hiko-whatu SOI e whakawhirinaki ana ki te horapa o ngā kaikawe e pāngia ana e ngā wero nui i roto i te whānui o te whānui, te whakapaunga hiko, te mimiti kaikawe kore utu me te kore-raina o te whakarerekētanga. Ko ētahi atu huarahi hangarau i roto i te umanga ko te InP, te kiriata angiangi lithium niobate LNOI, ngā polymer hiko-whatu, me ētahi atu otinga whakauru heterogeneous maha-pūhara. E kiia ana ko te LNOI te otinga ka taea te whakatutuki i te mahi pai rawa atu i roto i te whakarerekētanga tere-tino teitei me te mana iti, heoi, kei a ia ētahi wero i tēnei wā e pā ana ki te tukanga whakaputa papatipu me te utu. Nō nā tata nei, i whakarewahia e te tīma tētahi tūāpapa whakaahua-whakauru lithium tantalate kiriata angiangi (LTOI) me ngā āhuatanga whakaahua-hiko tino pai me te hanga nui, e matapaetia ana ka rite, ka hipa rānei i te mahi a ngā tūāpapa whatu lithium niobate me te silicon i roto i ngā tono maha. Heoi, tae noa ki tēnei wā, ko te taputapu matua owhakawhitiwhiti kōrero whatu, te whakarerekētanga hiko-whatu tere-tino teitei, kāore anō kia manatokohia i roto i te LTOI.

I roto i tēnei rangahau, i hangaia tuatahitia e ngā kairangahau te LTOI electro-optic modulator, ko tōna hanganga e whakaaturia ana i te Pikitia 1. Mā te hoahoa i te hanganga o ia paparanga o te lithium tantalate i runga i te insulator me ngā tawhā o te electrode microwave, ka taurite te tere horapa o te microwave me te ngaru mārama i roto i tekaiwhakarerekē hiko-whatukua tutuki. Mō te whakaiti i te ngaronga o te hiko ngaruiti, nā ngā kairangahau o tēnei mahi i whakaaro tuatahi te whakamahinga o te hiriwa hei rauemi hiko me te kawe hiko pai ake, ā, i whakaaturia te whakaiti a te hiko hiriwa i te ngaronga o te ngaruiti ki te 82% ki te whakataurite ki te hiko koura e whakamahia whānuitia ana.

PIK. 1 Hanganga whakarerekētanga hiko-whatu LTOI, hoahoa taurite ā-wāhanga, whakamātautau ngaronga hiko ngaruiti.

E whakaatu ana te PIK. 2 i te taputapu whakamātautau me ngā hua o te LTOI electro-optic modulator mōte kaha kua whakarerekētiate kimi tika (IMDD) i roto i ngā pūnaha whakawhitiwhiti whatu. E whakaatu ana ngā whakamātautau ka taea e te LTOI electro-optic modulator te tuku tohu PAM8 i te tere tohu o te 176 GBd me te BER ine o te 3.8×10⁻² i raro i te paepae 25% SD-FEC. Mō te 200 GBd PAM4 me te 208 GBd PAM2, he iti iho te BER i te paepae o te 15% SD-FEC me te 7% HD-FEC. Ko ngā hua whakamātautau kanohi me te histogram i te Pikitia 3 e whakaatu ana ka taea te whakamahi i te LTOI electro-optic modulator i roto i ngā pūnaha whakawhitiwhiti tere-teitei me te raina teitei me te tere hapa moka iti.

PIK. 2 Whakamātautau mā te whakamahi i te LTOI electro-optic modulator mōTe kaha kua whakarerekētiaTe Kimi Tika (IMDD) i roto i te pūnaha whakawhitiwhiti whatu (a) taputapu whakamātautau; (b) Te reiti hapa moka i inehia (BER) o ngā tohu PAM8(whero), PAM4(kakariki) me PAM2(kikorangi) hei mahi a te reiti tohu; (c) Te reiti mōhiohio whai hua i tangohia (AIR, rārangi pītiti) me te reiti raraunga kupenga e pā ana (NDR, rārangi totoka) mō ngā inenga me ngā uara reiti hapa-moka i raro i te rohe 25% SD-FEC; (d) Ngā mahere kanohi me ngā histogram tatauranga i raro i te whakarerekētanga PAM2, PAM4, PAM8.

E whakaatu ana tēnei mahi i te tuatahi o ngā taputapu whakarerekētanga hiko-whatu LTOI tere-teitei me te whānui o te 3 dB o te 110 GHz. I roto i ngā whakamātautau tuku IMDD kimi tika mō te whakarerekētanga kaha, ka tutuki i te taputapu te tere raraunga kupenga kotahi o te 405 Gbit/s, he rite ki te mahi pai rawa atu o ngā tūāpapa hiko-whatu o nāianei pērā i te LNOI me ngā taputapu whakarerekētanga plasma. I te heke mai, mā te whakamahi i ngā taputapu matatini akeKaiwhakarerekē IQI roto i ngā hoahoa, i ngā tikanga whakatikatika hapa tohu matatau ake rānei, i te whakamahi rānei i ngā papa ngaruiti iti iho te ngaronga pērā i ngā papa quartz, e tūmanakohia ana ka eke ngā taputapu lithium tantalate ki ngā tere whakawhitiwhiti kōrero o te 2 Tbit/s, neke atu rānei. I te taha o ngā painga motuhake o te LTOI, pērā i te iti o te birefringence me te pānga tauine nā tōna whakamahinga whānui i roto i ētahi atu mākete tātari RF, ka whakaratohia e te hangarau photonics lithium tantalate he otinga iti te utu, iti te mana me te tere-tino mō ngā whatunga whakawhitiwhiti kōrero whatu tere-teitei o te whakatupuranga e whai ake nei me ngā pūnaha photonics microwave.