Eo Modulator Series: Kuki lithium niobate yitwa optique silicon

Lithium niobate izwi kandi nka silikoni y'amatara. Hari imvugo ivuga ngo “lithium niobate ni itumanaho ry'amatara nkuko silikoni ari abahanga mu by'amashanyarazi.” Akamaro ka silikoni mu mpinduramatwara y'ibikoresho by'ikoranabuhanga, none ni iki gituma inganda zigira icyizere ku bikoresho bya lithium niobate?

Lithium niobate (LiNbO3) izwi nka "silicone y'urumuri" mu nganda. Uretse ibyiza karemano nko kuba imiterere myiza y'umubiri n'imiti, idirishya rinini ribonerana (0.4m ~ 5m), na coefficient nini ya electro-optical (33 = 27 pm / V), lithium niobate nayo ni ubwoko bwa kristu ifite ibikoresho byinshi kandi ihendutse. Ikoreshwa cyane mu byuma biyungurura amashanyarazi, ibikoresho bya electro-optical, ububiko bwa holographic, display ya 3D holographic, ibikoresho bidafite umurongo, itumanaho rya quantum ry'urumuri n'ibindi. Mu rwego rw'itumanaho rya optical, lithium niobate ikunze kugira uruhare mu guhindura urumuri, kandi yabaye ikintu cy'ingenzi muri modulator ya electro-optical yihuta cyane (ubu).Umuhuzabikorwa wa Eo) isoko.

Kuri ubu, hari ikoranabuhanga ritatu ry'ingenzi ryo guhindura urumuri mu nganda: modulators za electro-optical (Eo Modulator) zishingiye ku rumuri rwa silicon, indium fosfide nalithiyumu niobateplatforms z'ibikoresho. Modulator ya Silicon optique ikoreshwa cyane cyane muri modules za transceiver z'itumanaho ry'amakuru magufi, modulator ya indium phosphide ikoreshwa cyane cyane muri modules za transceiver z'itumanaho ry'amakuru magufi n'amakuru maremare, naho modulator ya lithium niobate electro-optical (Eo Modulator) ikoreshwa cyane cyane mu itumanaho ry'amakuru maremare n'amakuru maremare hamwe n'amakuru yihuta cyane ya 100/200Gbps. Muri izo platforms eshatu zavuzwe haruguru, modulator ya lithium niobate ya thin film yavutse mu myaka ya vuba aha ifite inyungu ya bandwidth izindi bikoresho zidashobora guhura nayo.

Lithium niobate ni ubwoko bw'ibintu bitagira umwimerere, formula ya chimiqueLiNbO3, ni kristu ifite imiterere mibi, kristu ifite ferroelectric, kristu ifite polarized lithium niobate crystal ifite piezoelectric, ferroelectric, fotoelectric, optique idakoresha umurongo umwe, thermoelectric n'indi miterere y'ibikoresho, icyarimwe ifite ingaruka zo gufotora. kristu ifite kristu ya Lithium niobate ni imwe mu bikoresho bishya bikoreshwa cyane, ni ibikoresho byiza byo guhanahana ingufu bya piezoelectric, ibikoresho bya ferroelectric, ibikoresho bya electro-optical, lithium niobate nk'ibikoresho bya electro-optical mu itumanaho ry'urumuri bigira uruhare mu guhindura urumuri.

Ibikoresho bya lithium niobate, bizwi ku izina rya "silicone optique", bikoresha uburyo bwa micro-nano bugezweho mu gushyushya urwego rwa silicon dioxide (SiO2) kuri substrate ya silicon, bigahuza substrate ya lithium niobate ku bushyuhe bwinshi kugira ngo bikorane ubuso buto, hanyuma bigakuraho firime ya lithium niobate. Modulator ya lithium niobate yateguwe ifite ibyiza byo gukora neza, ihendutse, nto, ikorwa cyane, kandi ihuye n'ikoranabuhanga rya CMOS, kandi ni igisubizo cyiza cyane mu guhuza optique mu gihe kizaza.

Niba ikigo cy’impinduka y’ibikoresho by’ikoranabuhanga cyitiriwe ibikoresho bya silikoni byatumye bishoboka, noneho impinduka ya fotoniki ishobora kuba ikomoka ku bikoresho bya lithium niobate, izwi ku izina rya "silicone optique" lithium niobate ni ibikoresho bidafite ibara bibonerana bihuza ingaruka za photorefractive, ingaruka zitari umurongo, ingaruka za electro-optical, ingaruka za acousto-optical, ingaruka za piezoelectric n’ingaruka z’ubushyuhe. Imiterere yayo myinshi ishobora kugenzurwa n’imiterere ya kristale, doping y’ibintu, igenzura rya valence state n’ibindi bintu. Ikoreshwa cyane mu gutegura optique waveguide, optique switch, piezoelectric modulator,modulator y'amashanyarazi n'amatara, icyuma cya kabiri gitanga ingufu za harmonic, imashini yongera imbaraga za laser n'ibindi bicuruzwa. Mu nganda z'itumanaho ry'amajwi, modulators ni isoko ry'ingenzi rikoreshwa kuri lithium niobate.