Eo Modulator Urukurikirane: Kuki lithium niobate yitwa optique silicon

Litiyumu niobate izwi kandi nka optiki silicon. Hariho umugani uvuga ngo "lithium niobate ni ugutumanaho neza icyo silicon aricyo kuri semiconductor." Akamaro ka silicon muri revolution ya electronics, none niki gituma inganda zizera cyane ibikoresho bya lithium niobate?

Litiyumu niobate (LiNbO3) izwi nka “optique silicon” mu nganda. Usibye ibyiza bisanzwe nkibintu byiza byumubiri nubumashini, idirishya ryagutse neza (0.4m ~ 5m), hamwe na coefficient nini ya electro-optique (33 = 27 pm / V), lithium niobate nayo ni ubwoko bwa kirisiti ifite ibikoresho byinshi bibisi kandi bihendutse. Ikoreshwa cyane mubikorwa byo hejuru byungurura, ibikoresho bya electro-optique, ububiko bwa holographe, kwerekana 3D holographic, ibikoresho bya optique bidafite umurongo, itumanaho rya optique nibindi. Mu rwego rwitumanaho rya optique, lithium niobate ikina cyane cyane uruhare rwo guhindura urumuri, kandi ibaye ibicuruzwa byingenzi muburyo bugezweho bwihuta bwa electro-optique modulator (Eo Modulator) isoko.

Kugeza ubu, hari tekinoroji eshatu zingenzi zo guhindura urumuri mu nganda: modulator ya electro-optique (Eo Modulator) ishingiye ku mucyo wa silicon, indium fosifide nalithium niobateurubuga. Moderi ya Silicon optique ikoreshwa cyane cyane mugihe gito kigufi cyamakuru yo gutumanaho amakuru, moderi ya indium fosifike ikoreshwa cyane cyane murwego rwo hagati kandi rurerure rwitumanaho rwitumanaho rwitumanaho, hamwe na lithium niobate electro-optique modulator (Eo Modulator) ikoreshwa cyane cyane murwego rurerure rwumugongo rwihuriro rwitumanaho hamwe numurongo umwe wihuta 100 / 200Gbps. Mubintu bitatu byavuzwe haruguru ultra-high yihuta ya modulator yibikoresho, moderi yoroheje ya lithium niobate modulator yagaragaye mumyaka yashize ifite umurongo mugari ibindi bikoresho bidashobora guhura.

Litiyumu niobate ni ubwoko bwibintu bidasanzwe, imiti yimitiLiNbO3. Litiyumu niobate kristal ni kimwe mu bikoresho bikoreshwa cyane mu bikoresho bidasanzwe, ni ibikoresho byiza byo guhana ingufu za piezoelectric, ibikoresho bya ferroelectric, ibikoresho bya electro-optique, lithium niobate nkibikoresho bya electro-optique mu itumanaho rya optique bigira uruhare mu guhindura urumuri.

Ibikoresho bya lithium niobate, bizwi ku izina rya "optique silicon", ikoresha uburyo bwa micro-nano iheruka kugira ngo ihindurwe na silicon dioxyde (SiO2) kuri sisitemu ya silicon, ihuza substrate ya lithium niobate ku bushyuhe bwo hejuru kugira ngo yubake ubuso, hanyuma amaherezo ikure kuri firime ya lithium niobate. Hateguwe firime yoroheje ya lithium niobate modulator ifite ibyiza byo gukora cyane, igiciro gito, ingano nto, umusaruro mwinshi, hamwe no guhuza ikoranabuhanga rya CMOS, kandi ni igisubizo cyo guhatanira guhuza imiyoboro yihuse ya optique ihuza ejo hazaza.

Niba hagati ya revolution ya electronics yitiriwe ibikoresho bya silicon yatumye bishoboka, noneho impinduramatwara ya fotonike irashobora gukomoka kubintu bya lithium niobate, bizwi nka "optique silicon" lithium niobate nibintu bitagira ibara bibonerana bihuza ingaruka zifotora, ingaruka zidafite umurongo, ingaruka za electro-optique, ingaruka za piezoelectric. Byinshi mubintu byayo birashobora kugenzurwa na kristu yibigize, doping element, valence leta igenzura nibindi bintu. Ikoreshwa cyane mugutegura optique ya optique, optique ihindura, moderi ya piezoelectric,amashanyarazi ya optique, amashanyarazi ya kabiri ahuza, laser frequency kugwiza nibindi bicuruzwa. Mu nganda zitumanaho nziza, modulator ni isoko yingenzi yo gukoresha kuri lithium niobate.