High performance electro-optic modulator:mutete firimu lithium niobate modulator
Electro-optical modulator (EOM modulator) modulator inogadzirwa uchishandisa electro-optical effect yemamwe electro-optical crystals, inogona kushandura masaini emagetsi ekumhanya-mhanya mumidziyo yekutaurirana kuita zviratidzo zvemaziso. Kana iyo electro-optic crystal inoiswa pasi penzvimbo yemagetsi inoshandiswa, iyo refractive index ye electro-optic crystal ichachinja, uye optical wave maitiro ekristaro anozochinjawo zvinoenderana, kuitira kuti uone modulation yeamplitude, chikamu uye polarization mamiriro echiratidzo chechiratidzo, uye kushandura iyo inomhanya-inomhanya yemagetsi siginecha muchiratidzo chekutaurirana kuburikidza neiyo modu yekutaurirana.
Parizvino, kune marudzi matatu makuru eelectro-optic modulatorspamusika: silicon-based modulators, indium phosphide modulators uye firimu rakatetepalithium niobate modulator. Pakati pavo, silicon haina yakananga electro-optical coefficient, kushanda kwacho kwakawanda, kwakakodzera chete kugadzirwa kwepfupi-kure data transmission transceiver module modulator, indium phosphide kunyangwe yakakodzera yepakati-refu kure optical communication network transceiver module, asi iyo yekubatanidza nzira inodiwa yakakwira zvakanyanya, mutengo wakanyanya kukwirira, chikumbiro chiri pasi pezvimwe zvisingakwanisi. Kusiyana neizvi, lithium niobate crystal haina kupfuma chete muphotoelectric effect, set photorefractive effect, nonlinear effect, electro-optical effect, acoustic optical effect, piezoelectric effect uye thermoelectric effect yakaenzana neimwe, uye nekuda kwechimiro chayo chelattice uye hupfumi husina kukwana, zvinhu zvakawanda zve lithium niobate zvinogona kudzorwa zvakanyanya nepamusoro pekuita, crystal element, kuumbwa kwezvinhu, kugadzirwa kwezvinhu, nezvimwewo. photoelectric performance, yakadai seye electro-optical coefficient inosvika 30.9pm/V, yakanyanya kukwirisa kupfuura indium phosphide, uye ine diki chirp effect (chirp effect: inoreva chiitiko chekuti frequency mukati mepulse inoshanduka nenguva panguva yelaser pulse transmission process. Iyo yakakura chirp mhedzisiro inoguma muyero yakaderera yechiratidzo-ku-ino-inosa simba reshiyo) chiratidzo che "pa" mamiriro kune "off" mamiriro), uye hukuru hwemudziyo kugadzikana. Pamusoro pezvo, iyo yekushanda yefirimu yakaonda lithium niobate modulator yakasiyana neiyo silicon-based modulator uye indium phosphide modulator ichishandisa nonlinear modulation nzira, iyo inoshandisa linear electro-optical effect kurodha chiratidzo chemagetsi pane inotakura inotakura, uye mwero wemodulation unonyanya kutariswa nekuita kweiyo microwave modude yemagetsi uye kuderera kwemagetsi kukurumidza kukurumidza. kubudirira. Kubva pane zvataurwa pamusoro apa, lithium niobate yave sarudzo yakanaka yekugadzirira kwepamusoro-soro electro-optic modulators, iyo ine zvakawanda zvakasiyana-siyana zvekushandisa mu 100G/400G yakabatana optical communication network uye ultra-high-speed data centers, uye inogona kuwana marefu ekufambisa marefu emakiromita anopfuura 100.
Lithium niobate sechinhu chinopandukira che "photon revolution", kunyangwe ichienzaniswa nesilicon uye indium phosphide ine zvakawanda zvakanaka, asi inowanzoonekwa muchimiro chechinhu chakawanda mumudziyo, mwenje unogumira kune ndege waveguide inoumbwa neion diffusion kana proton exchange, iyo refractive index mutsauko unowanzo diki (inenge 0.02 yakakura saizi). Zvakaoma kusangana nezvinodiwa zve miniaturization uye kubatanidzwa kweoptical devices, uye mutsara wayo wekugadzira uchiri wakasiyana kubva kune chaiwo microelectronics process line, uye kune dambudziko remutengo wakakwirira, saka kuonda kwemafirimu kuumbwa inzira yakakosha yekusimudzira ye lithium niobate inoshandiswa mu electro-optical modulators.
Nguva yekutumira: Zvita-24-2024