I-Lithium Tantalate (LTOI) I-High Speed ​​Electro-Optic Modulator

I-Lithium Tantalate (LTOI) ijubane eliphezuluI-Electro-Optic Modulator

I-Global Data Traffic iyaqhubeka nokukhula, iqhutshwa ngukutholwa okusabalele kobuchwepheshe obusha obufana ne-5G kanye ne-intelligence (AI), okubeka izinselelo ezinkulu zokulandela ama-transceivers kuwo wonke amazinga amanethiwekhi abonayo. Ngokukhethekile, isizukulwane esilandelayo sobuchwepheshe be-electro-optic modulator budinga ukwanda okukhulu kwamanani okudlulisa idatha kuya kuma-200 gbps esiteshini esisodwa ngenkathi kunciphisa ukusetshenziswa kwamandla nezindleko. Eminyakeni embalwa edlule, ubuchwepheshe be-Silicon Photonics busetshenziswe kabanzi emakethe ye-transceiver ye-Optical Transceiver, ikakhulukazi ngenxa yokuthi izithombe ze-silicon zingakhiqizwa ngobuningi benqubo ye-CMOS evuthiwe. Kodwa-ke, ama-modulators we-SOI Electro-Optic ancike ekusakazweni kwenkampani yenethiwekhi ebhekene nezinselelo ezinkulu ku-bandwidth, ukusetshenziswa kwamandla, ukumuncwa kwamahhala kwesithwali kanye nokushintshanisa nokungahloniphi. Ezinye izindlela zobuchwepheshe embonini zifaka i-INP, film film lithium niobate lnoi, i-electro-optical polymers, nezinye izixazululo ezihlanganisiwe ze-heterogeneous. I-LNOI ibhekwa njengekhambi elingafinyelela ukusebenza okuhle kakhulu ngesivinini esikhulu se-Ultra-high kanye nokushintshana kwamandla okuphansi, okwamanje, okwamanje kunezinselelo ezithile ngokuya ngenqubo yokukhiqiza kanye nezindleko eziningi. Muva nje, iqembu lethule ipulatifomu ehlanganisiwe ye-Lithium Tantalate (LTOI) ehlanganisiwe (i-LTOI) ehlanganisiwe ye-PhotoElectric Properties kanye nokukhiqiza okulinganiselwe, okulindeleke ukuthi kufane noma kudlule ukusebenza kwe-lithium niobate kanye nama-silicon optical platformay kuzinhlelo eziningi. Kodwa-ke, kuze kube manje, insiza ebalulekile yeUkuxhumana kwe-Optical, i-Ultra-high speed electro-optic modulator, ayiqinisekiswanga ku-LTOI.

Kulolu cwaningo, abacwaningi baqala ukuklama i-LTOI Electro-Optic Modulator, ukwakheka kwalo okukhonjiswa kuMfanekiso 1. Ngokwakheka kwesakhiwo songqimba ngalunye lwe-lithium tallalate ku-microwave electrotor, ukufana okusheshayo kwe-microwave kanye ne-light wave kuI-Electro-Optical Modulatorkuyabonakala. Ngokuya ngokunciphisa ukulahleka kwe-electrode ye-microwave, abacwaningi kulo msebenzi okokuqala ngqa bahlongoze ukusetshenziswa kwesiliva njengezinto ezisetshenziswayo nge-electrode ezinokudla okungcono, futhi i-electrode yesiliva yaboniswa ukunciphisa ukulahleka kwe-microwave ku-62% uma kuqhathaniswa ne-electrode yegolide esetshenziswe kabanzi.

Fig. Isakhiwo esingu-1 se-Electro-Optic Modulator, ukwakheka kwesigaba, ukuhlolwa kokulahleka kwe-electrowave electrowave.

Fig. 2 ikhombisa imishini yokuhlola kanye nemiphumela ye-LTOI Electro-Optic Modulator yeUkuqina okulungiselelweUkutholwa okuqondile (imdd) ezinhlelweni zokuxhumana ze-Optical. Ukuhlolwa kukhombisa ukuthi i-LTOI Electro-Optic Modulator ingadlulisela amasiginali e-PAM8 ngesilinganiso se-176 GBD nge-ber elinganiswe ngo-3.8 × 10⁻² ngaphansi komkhawulo ongu-25% we-SD-feec. Kubo bobabili i-GBD Pam4 ne-208 GBD Pam2, i-BER yayiphansi kakhulu kunombundu we-15% we-SD-FEC no-7% HD-FEC. Ukuhlolwa kwamehlo kanye ne-histogram kuphumela kuMdwebo 3 ukubonakala ngokubonakalayo ukuthi i-LTOI Electro-Optic Modulator ingasetshenziswa ezinhlelweni zokuxhumana ezinejubane eliphezulu nge-lineartity ephezulu nesilinganiso sephutha eliphansi.

Fig. 2 Ukuvivinya usebenzisa i-LTOI Electro-Optic Modulator yeUkuqina okulungiselelweUkutholwa okuqondile (IMDD) ku-Optical Communication System (a) Idivayisi yokuhlola; . . (d) Amamephu Eye kanye nama-histograms wezibalo ngaphansi kwePam2, Pam4, Pam8 Ukushintshashintsha.

Lo msebenzi ukhombisa i-modulator yokuqala ye-LTOIPECECE ENECELCH-Optic ye-Electro-Optic e-3 ye-3 DB ye-110 GHz. Ekuguqukeni okuphezulu kokutholwa kokutholwa kwe-IMDD Ukutholwa kwe-IMDD, idivaysi ifinyelela isilinganiso sedatha yenethiwekhi eyodwa ye-405 gbit / s, okuqhathaniswa nokusebenza okungcono kakhulu kwamapulatifomu akhona we-electro-optical afana nama-lnoi kanye nama-plasma modulators. Ngokuzayo, usebenzisa i-taturke eyengeziweIQ ModulatorImiklamo noma amasu wokulungisa amaphutha athuthukile, noma asebenzisa ama-microwave alahlekelwe yi-microwave aphansi afana ne-quartz substrates, amadivaysi e-lithium tantalate kulindeleke ukuthi afinyelele amanani wokuxhumana we-2 tbit / s ngaphezulu. Kuhlanganiswe nezinzuzo ezithile zikaLtoi, njenge-birefheence engezansi kanye nomphumela we-scale ngenxa yezimpawu zokuhlunga ze-RF, ama-lithium tantalate technology azohlinzeka ngezixazululo ezibiza kakhulu, ezinamandla aphezulu kanye nejubane le-timesical speed speed amanethiwekhi kanye nezinhlelo ze-microwave Photonics.