Horumarka cilmi baarista ee filimka khafiifka ah ee lithium niobate modulator electro-optic

Horumarka cilmi baarista eefilim khafiif ah lithium niobate modulator electro-optic

Modulator Electro-optic waa aaladda xudunta u ah nidaamka isgaarsiinta indhaha iyo nidaamka photonic microwave. Waxay xakameysaa faafinta iftiinka ee meel bannaan ama mawjadaha indhaha iyadoo bedesha tusmada wax-soo-saarka ee walxaha ay keento goobta koronto ee la dabaqay. Lithium-dhaqameedka niobatemodulator-ka-elektarooniga ahwaxay isticmaashaa walxo badan oo lithium niobate ah sida walxo koronto-optical ah. Maaddada kaliya ee lithium niobate ee kristanta ayaa maxalli ahaan loo sameeyay si ay u sameeyaan waveguide iyada oo loo marayo faafinta titanium ama habka beddelka proton. Farqiga tusmada dib-u-celinta ee u dhexeeya lakabka xudunta ah iyo lakabka xidhiddu waa mid aad u yar, iyo waveguide-ku waxa uu leeyahay awood liidata oo lagu xidho goobta iftiinka. Dhererka guud ee modulator-ka elektiroonigga ah ee baakadaysan ayaa badanaa ah 5 ~ 10 cm.

Tiknoolajiyada Lithium Niobate ee Insulator (LNOI) waxay bixisaa hab wax ku ool ah oo lagu xalliyo dhibaatada cabbirka weyn ee modulator-ka elektiroonigga ah ee lithium niobate. Farqiga tusmada dib-u-celinta ee u dhexeeya lakabka xudunta u ah waveguide iyo lakabka xayndaabku waa ilaa 0.7, taas oo si weyn u xoojisa awoodda isku xidhka qaabka indhaha iyo saamaynta nidaaminta korantada indhaha ee waveguide, waxaanay noqotay goob cilmi baaris ah oo ku taal berrinkii modulator-ka elektiroonigga ah.

Horumarka tignoolajiyada-machining-yar-yar awgeed, horumarinta modulators-ka korantada-optic-ga ee ku salaysan madal LNOI waxa ay samaysay horumar degdeg ah, taas oo muujinaysa isbeddelka cabbirka is haysta iyo horumarinta joogtada ah ee waxqabadka. Marka loo eego qaab dhismeedka waveguide ee loo isticmaalo, filimka khafiifka ah ee caadiga ah ee lithium niobate modulators electro-optic ayaa si toos ah u xardhan modulators elektro-optic modulators.modulators waveguideiyo silikoon isku-dhafan oo isku-dhafan mawjadaha waveguide korantada-optic modulators.

Waqtigan xaadirka ah, hagaajinta geeddi-socodka etching qalalan si weyn u yaraynaysaa luminta filimka khafiif ah lithium niobate waveguide, habka loading tiixda xaliya dhibaatada habka etching sare adag, iyo waxa uu xaqiiqsaday modulator lithium niobate electro-optic modulator la danab ka yar 1 V kala badh mawjadaha, iyo isku darka la technology SOI bislaaday u hoggaansamaan isbeddelka photointegration iyo electron. Filimka khafiifka ah ee tignoolajiyada lithium niobate waxay leedahay faa'iidooyin garashada khasaaraha hooseeya, cabbir yar iyo baaxad weyn oo isku-dhafan modulator-ka elektiroonigga ah ee chip. Aragti ahaan, waxaa la saadaaliyay in filimka khafiifka ah ee 3mm lithium niobate uu riixayoModulator-ka M⁃ZXajmiga 3dB ee korantada indhaha wuxuu gaari karaa ilaa 400 GHz, iyo baaxadda cabirka filimka khafiifka ah ee tijaabada ah ee loo diyaariyey lithium niobate modulator ayaa la sheegay inuu ka badan yahay 100 GHz, kaasoo wali ka fog xadka sare ee aragtida. Horumarka la keenay iyada oo la wanaajinayo cabbirrada qaabdhismeedka aasaasiga ah ayaa xaddidan. Mustaqbalka, marka laga eego dhinaca sahaminta habab cusub iyo qaab-dhismeedyo, sida naqshadaynta kolaydhka waveguide-ka caadiga ah ee coplanar sida korantada microwave-ga qaybsan, waxqabadka modulator-ka ayaa laga yaabaa in la sii wanaajiyo.

Intaa waxaa dheer, xaqiijinta baakadaha isku-dhafka ah ee modulator-ka isku-dhafka ah iyo isku-dhafka isku-dhafka ah ee isku-dhafka ah ee leysarka, qalabka wax lagu ogaanayo iyo qalabka kale labadaba waa fursad iyo caqabad ku ah horumarinta mustaqbalka ee filimka khafiifka ah ee lithium niobate modulators. Filimka khafiifka ah ee lithium niobate modulator electro-optic ayaa door muhiim ah ka ciyaari doona mikrowave photon, isgaarsiinta indhaha iyo meelaha kale.