Lithium niobate kuj hu ua optical silicon. Muaj ib zaj lus hais tias "lithium niobate yog rau kev sib txuas lus optical zoo li silicon yog rau semiconductors." Qhov tseem ceeb ntawm silicon hauv kev hloov pauv hluav taws xob, yog li dab tsi ua rau kev lag luam zoo siab txog cov ntaub ntawv lithium niobate?
Lithium niobate (LiNbO3) yog hu ua "optical silicon" hauv kev lag luam. Ntxiv rau qhov zoo ntawm ntuj tsim xws li kev ruaj khov ntawm lub cev thiab tshuaj, qhov rai dav dav uas pom tseeb (0.4m ~ 5m), thiab cov coefficient electro-optical loj (33 = 27 pm/V), lithium niobate kuj yog ib hom siv lead ua los ntawm cov khoom siv raw ntau thiab tus nqi qis. Nws yog siv dav hauv cov lim dej ua haujlwm siab, cov khoom siv electro-optical, kev khaws cia holographic, 3D holographic zaub, cov khoom siv optical nonlinear, kev sib txuas lus quantum optical thiab lwm yam. Hauv kev sib txuas lus optical, lithium niobate feem ntau ua lub luag haujlwm ntawm kev hloov pauv lub teeb, thiab tau dhau los ua cov khoom tseem ceeb hauv cov khoom siv high-speed electro-optical modulator tam sim no (Eo Modulator) kev ua lag luam.
Tam sim no, muaj peb lub thev naus laus zis tseem ceeb rau kev hloov kho lub teeb hauv kev lag luam: electro-optical modulators (Eo Modulator) raws li silicon lub teeb, indium phosphide thiablithium niobatecov khoom siv platform. Silicon optical modulator feem ntau yog siv rau hauv cov ntaub ntawv luv luv transceiver modules, indium phosphide modulator feem ntau yog siv rau hauv nruab nrab thiab ntev optical kev sib txuas lus network transceiver modules, thiab lithium niobate electro-optical modulator (Eo Modulator) feem ntau yog siv rau hauv kev sib txuas lus ntev backbone network thiab ib nthwv dej 100/200Gbps ultra-high-speed data centers. Ntawm peb lub platform khoom siv ultra-high-speed modulator saum toj no, cov zaj duab xis nyias lithium niobate modulator uas tau tshwm sim hauv xyoo tas los no muaj qhov zoo ntawm bandwidth uas lwm cov ntaub ntawv tsis tuaj yeem sib piv.
Lithium niobate yog ib hom tshuaj inorganic, cov mis tshuaj lom neegLiNbO3, yog ib qho siv lead ua tsis zoo, ferroelectric siv lead ua, polarized lithium niobate siv lead ua nrog piezoelectric, ferroelectric, photoelectric, nonlinear optics, thermoelectric thiab lwm yam khoom ntawm cov khoom siv, tib lub sijhawm nrog photorefractive effect. Lithium niobate siv lead ua yog ib qho ntawm cov khoom siv inorganic tshiab siv dav tshaj plaws, nws yog ib qho khoom siv pauv zog piezoelectric zoo, khoom siv ferroelectric, khoom siv electro-optical, lithium niobate ua cov khoom siv electro-optical hauv kev sib txuas lus optical ua lub luag haujlwm hauv kev hloov pauv lub teeb.
Cov khoom siv lithium niobate, hu ua "optical silicon", siv cov txheej txheem micro-nano tshiab tshaj plaws los ua kom cov txheej silicon dioxide (SiO2) ntawm cov silicon substrate, khi cov lithium niobate substrate ntawm qhov kub siab los tsim ib qho chaw txiav, thiab thaum kawg tev tawm cov zaj duab xis lithium niobate. Cov zaj duab xis nyias lithium niobate modulator uas tau npaj tseg muaj qhov zoo ntawm kev ua haujlwm siab, tus nqi qis, me me, tsim ntau, thiab sib xws nrog CMOS thev naus laus zis, thiab yog qhov kev daws teeb meem sib tw rau kev sib txuas lus optical ceev ceev yav tom ntej.
Yog tias qhov chaw ntawm kev hloov pauv hluav taws xob raug hu ua tom qab cov khoom siv silicon uas ua rau nws ua tau, ces kev hloov pauv photonics yuav raug taug qab mus rau cov khoom siv lithium niobate, hu ua "optical silicon" lithium niobate yog cov khoom siv pob tshab tsis muaj xim uas sib xyaw cov teebmeem photorefractive, cov teebmeem nonlinear, cov teebmeem electro-optical, cov teebmeem acousto-optical, cov teebmeem piezoelectric thiab cov teebmeem thermal. Ntau yam ntawm nws cov khoom tuaj yeem tswj tau los ntawm cov khoom siv crystal, cov khoom doping, valence state control thiab lwm yam. Nws yog dav siv los npaj cov waveguide optical, optical switch, piezoelectric modulator,electro-optical modulator, lub tshuab hluav taws xob thib ob harmonic, laser zaus multiplier thiab lwm yam khoom. Hauv kev lag luam kev sib txuas lus optical, modulators yog ib qho kev lag luam tseem ceeb rau lithium niobate.
Lub sijhawm tshaj tawm: Lub Kaum Hli-24-2023