Lithium niobate o loʻo taʻua foi o le optical silicon. O loʻo i ai se faʻamatalaga o le "lithium niobate o le fesoʻotaʻiga faʻapitoa lea o le silikoni i semiconductors." Le taua o le silikoni i le suiga o mea tau eletise, o le a la le mea e faʻamoemoeina ai le alamanuia e uiga i mea lithium niobate?
Lithium niobate (LiNbO3) ua lauiloa o le "silikoni mata" i totonu o le alamanuia. I le faaopoopo atu i tulaga lelei faalenatura e pei o le mautu lelei faaletino ma vailaau, lautele opitika malamalama faamalama (0.4m ~ 5m), ma tele electro-optical coefficient (33 = 27 pm / V), lithium niobate o se ituaiga tioata ma le mata tele. meafaitino ma tau maualalo. E faʻaaogaina lautele i faʻamalo maualuga, masini eletise-eletise, teuina holographic, faʻaaliga holographic 3D, masini faʻapipiʻi e le laina, fesoʻotaʻiga quantum optical ma isi. I le tulaga o fesoʻotaʻiga faʻapitoa, o le lithium niobate e masani ona faʻatinoina le matafaioi o le faʻaogaina o le malamalama, ma ua avea ma oloa autu i le eletise eletise-optic modulator o loʻo i ai nei (Eo Modulator) maketi.
I le taimi nei, e tolu tekinolosi autu mo le faʻaogaina o le malamalama i totonu o le alamanuia: electro-optical modulators (Eo Modulator) faʻavae i luga o le malamalama silicon, indium phosphide malithium niobatetulaga faavae. Silicon optical modulator e masani ona faʻaaogaina i faʻamatalaga puʻupuʻu fesoʻotaʻiga transceiver modules, indium phosphide modulator e masani ona faʻaaogaina i le vaeluaga ma le umi o fesoʻotaʻiga fesoʻotaʻiga transceiver modules, ma le lithium niobate electro-optical modulator (Eo Modulator) e masani ona faʻaaogaina i totonu. feso'ota'iga feso'ota'iga feso'ota'iga tu'uva'a umi-vave ma nofoaga autu o fa'amaumauga e tasi-galu 100/200Gbps. I luga o le tolu ultra-high speed modulator material platforms, o le ata manifinifi lithium niobate modulator lea na aliaʻe mai i tausaga talu ai o loʻo i ai le faʻaogaina o le bandwidth e le mafai e isi mea ona fetaui.
Lithium niobate o se ituaiga mea inorganic, fua fa'atatauLiNbO3, o se tioata le lelei, tioata ferroelectric, polarized lithium niobate tioata ma piezoelectric, ferroelectric, photoelectric, nonlinear optics, thermoelectric ma isi meatotino o mea, i le taimi lava e tasi ma aafiaga photorefractive. Lithium niobate tioata o se tasi o mea fou inorganic sili ona faʻaaogaina, o se mea lelei piezoelectric malosiaga fesuiaiga, mea ferroelectric, mea electro-optical, lithium niobate o se mea electro-optical i fesoʻotaʻiga opitika taʻalo se sao i le modulation malamalama.
O le lithium niobate mea, ua taʻua o le "optical silicon", e faʻaaogaina ai le micro-nano process sili ona lata mai e faʻafefe ai le silicon dioxide (SiO2) layer i luga o le silicon substrate, faʻapipiʻi le lithium niobate substrate i le maualuga o le vevela e fausia ai se vaeluaga, ma mulimuli ane paʻu. ese le ata tifaga lithium niobate. O le ata manifinifi ua saunia lithium niobate modulator o loʻo i ai le lelei o le maualuga o le faʻatinoga, tau maualalo, laʻititi laʻititi, gaosiga tele, ma le fetaui ma tekinolosi CMOS, ma o se faʻatauvaʻa faʻatauvaʻa mo fesoʻotaʻiga vaʻaia televave i le lumanaʻi.
Afai o le totonugalemu o le suiga faaeletonika ua faaigoa i le mea silicon na mafai ai, ona mafai lea ona maua le photonics revolution i le mea lithium niobate, ua taʻua o le "optical silicon" lithium niobate o se mea e leai ni lanu manino e tuufaatasia ai aafiaga photorefractive, nonlinear. aafiaga, aafiaga electro-optical, aafiaga acousto-optical, aafiaga piezoelectric ma aafiaga vevela. O le tele o ana meatotino e mafai ona faʻatonutonuina e ala i tioata tioata, elemene doping, valence state control ma isi mea. E masani ona faʻaaogaina e saunia ai faʻataʻitaʻiga opitika, kili faʻapitoa, piezoelectric modulator,fa'aogaina eletise eletise, fa'aola fa'atasi lona lua, fa'ateleina fa'atele leisa ma isi oloa. I totonu o pisinisi fesoʻotaʻiga faʻapitoa, o modulators o se maketi faʻaoga taua mo le lithium niobate.
Taimi meli: Oke-24-2023