Lithium niobate inozivikanwawo se optical silicon. Pane chirevo chinoti “lithium niobate zvinoreva kutaurirana kwe optical, silicon zvinoreva se semiconductors.” Kukosha kwesilicon mukuchinja kwemagetsi, saka chii chinoita kuti indasitiri ive netariro yakadaro nezvezvinhu zve lithium niobate?
Lithium niobate (LiNbO3) inozivikanwa se "optical silicon" muindasitiri. Pamusoro pezvakanaka zvechisikigo zvakaita sekugadzikana kwakanaka kwemuviri nemakemikari, hwindo rakafara rinoonekera (0.4m ~ 5m), uye electro-optical coefficient hombe (33 = 27 pm/V), lithium niobate imhando yekristaro ine zvinhu zvakawanda zvakabikwa uye mutengo wakaderera. Inoshandiswa zvakanyanya mumafirita anoshanda zvakanyanya, zvishandiso zve electro-optical, holographic storage, 3D holographic display, zvishandiso zvisina mutsara, optical quantum communication nezvimwewo. Mumunda wekutaurirana kwe optical, lithium niobate inonyanya kuita basa rekuchinja chiedza, uye yave chigadzirwa chikuru mu electro-optical modulator iripo (Modulator yeEo) musika.
Parizvino, kune matekinoroji matatu makuru ekugadzirisa chiedza muindasitiri iyi: mamodulators emagetsi-optical (Eo Modulator) akavakirwa pachiedza chesilicon, indium phosphide uyelithium niobatemapuratifomu ezvinhu. Silicon optical modulator inonyanya kushandiswa mumamodule etransceiver ekutaurirana data ari papfupi, indium phosphide modulator inonyanya kushandiswa mumamodule etransceiver ekutaurirana network ye optical ari pakati nepakati uye ari parefu, uye lithium niobate electro-optical modulator (Eo Modulator) inonyanya kushandiswa mukukurukurirana kwe network ye backbone backbone coherent uye single-wave 100/200Gbps ultra-high-speed data centers. Pakati pemapuratifomu matatu epamusoro e modulator, thin film lithium niobate modulator yakabuda mumakore achangopfuura ine mukana webandwidth uyo zvimwe zvinhu zvisingagoni kuenzana nawo.
Lithium niobate rudzi rwezvinhu zvisingasanganisike, fomura yemakemikariLiNbO3, ikristaro isina kunaka, kristaro yeferroelectric, polarized lithium niobate crystal ine piezoelectric, ferroelectric, photoelectric, nonlinear optics, thermoelectric nezvimwe zvinhu, panguva imwe chete ine photorefractive effect. Lithium niobate crystal ndeimwe yezvinhu zvitsva zvisingawanzo shandiswa, ichinhu chakanaka chekuchinjana simba repiezoelectric, ferroelectric, electro-optical material, lithium niobate sechinhu cheelectro-optical mukutaurirana kwemaziso chinoita basa mukuchinjisa chiedza.
Chinhu che lithium niobate, chinozivikanwa se "optical silicon", chinoshandisa nzira itsva ye micro-nano kupfungaira silicon dioxide (SiO2) layer pa silicon substrate, kubatanidza lithium niobate substrate pakupisa kwakanyanya kuti igadzire nzvimbo yakatsemuka, uye pakupedzisira kubvisa lithium niobate film. Modulator ye lithium niobate yakagadzirwa ine mabhenefiti ekushanda kwepamusoro, mutengo wakaderera, saizi diki, kugadzirwa kwakawanda, uye kuenderana netekinoroji yeCMOS, uye mhinduro inokwikwidza yekubatanidza optical nekukurumidza mune ramangwana.
Kana nzvimbo yepakati pekuchinja kwemagetsi yakatumidzwa zita rezvinhu zvesilicon zvakaita kuti zvikwanisike, ipapo kuchinja kwephotonics kunogona kuteverwa kune zvinhu zve lithium niobate, inozivikanwa se "optical silicon" lithium niobate chinhu chisina ruvara chinopenya chinosanganisa mhedzisiro ye photorefractive, mhedzisiro isiri yemutsara, mhedzisiro ye electro-optical, mhedzisiro ye acousto-optical, mhedzisiro ye piezoelectric uye mhedzisiro yekupisa. Hunhu hwayo hwakawanda hunogona kudzorwa nekuumbwa kwekristaro, doping yechinhu, kutonga kwemamiriro e valence nezvimwe zvinhu. Inoshandiswa zvakanyanya kugadzirira optical waveguide, optical switch, piezoelectric modulator,modulator yemagetsi-optical, jenareta yechipiri ye harmonic, laser frequency multiplier nezvimwe zvigadzirwa. Muindasitiri yekutaurirana kwemaziso, ma modulators imusika unokosha wekushandisa lithium niobate.
Nguva yekutumira: Gumiguru-24-2023