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 karemano nkibintu byiza byumubiri na chimique bihamye, idirishya ryagutse neza (0.4m ~ 5m), hamwe na coefficient nini ya electro-optique (33 = 27 pm / V), lithium niobate nayo ni ubwoko bwa kirisiti hamwe nibibisi byinshi inkomoko y'ibikoresho hamwe nigiciro gito. 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 muburyo bugufi bwamakuru yo guhanahana amakuru, moderi ya indium fosifide ikoreshwa cyane cyane murwego rwo hagati kandi rurerure rwitumanaho rwitumanaho rwitumanaho, na lithium niobate electro-optique (Eo Modulator) ikoreshwa cyane cyane muri intera ndende ya rugongo ihuza itumanaho hamwe numurongo umwe 100 / 200Gbps ultra-yihuta yamakuru yamakuru. 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 nka "optique silicon", ikoresha inzira ya micro-nano iheruka kugirango ihindure silicon dioxyde (SiO2) kumurongo wa silicon, ihuza substrate ya lithium niobate mubushyuhe bwinshi kugirango yubake hejuru, hanyuma amaherezo ikuramo hanze ya 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, izwi nka "optique silicon" lithium niobate nikintu kitagira ibara kibonerana gihuza ingaruka zifotora, zidafite umurongo Ingaruka, ingaruka za electro-optique, ingaruka za acousto-optique, ingaruka za piezoelectric ningaruka zumuriro. 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.