Iterambere ry'ubushakashatsi ku ikoreshwa rya modulator ya electro-optic ya lithium niobate thin film

Intambwe ubushakashatsi bwateyemodulator ya electro-optic ya lithium niobate ifite icyuma gito cya firime

Modulator ya Electro-optic ni igikoresho cy'ingenzi cya sisitemu y'itumanaho rya optique na sisitemu ya microwave fotonique. Igenzura urumuri rukwirakwira mu mwanya wigenga cyangwa umurongo w'amajwi uhindura imiterere y'ibikoresho biterwa n'amashanyarazi akoreshwa. Lithium niobate isanzwemodulator y'amashanyarazi n'amataraikoresha ibikoresho bya lithium niobate nk'ibikoresho bya electro-optical. Ibikoresho bya lithium niobate imwe ya kristu ikoreshwa mu buryo bwa kristu kugira ngo ikore waveguide binyuze mu gukwirakwiza titanium cyangwa inzira yo guhinduranya proton. Itandukaniro ry'igipimo cyo kurekura hagati y'urwego rw'ibanze n'urwego rwo gupfuka ni rito cyane, kandi waveguide ifite ubushobozi buke bwo gufatana n'urumuri. Uburebure bwose bwa modulator ya electro-optic ipakiye akenshi ni cm 5-10.

Ikoranabuhanga rya Lithium Niobate kuri Insulator (LNOI) ritanga uburyo bwiza bwo gukemura ikibazo cy’ingano nini ya modulator ya lithium niobate electro-optic. Itandukaniro ry’igipimo cyo kurekura hagati y’urwego rw’ibanze rw’umuraba n’urwego rwo gupfuka uburebure ni 0.7, ibyo byongera cyane ubushobozi bwo gufatanya n’uburyo bwo kugenzura amashanyarazi n’imikorere y’urumuri rw’umuraba, kandi ryabaye ahantu hakunze kugaragara ubushakashatsi mu bijyanye na modulator ya electro-optical.

Bitewe n'iterambere ry'ikoranabuhanga rya micro-machine, iterambere rya modulator za electro-optic zishingiye kuri platform ya LNOI ryateye imbere cyane, bigaragaza ko ingano ntoya kandi ikomeza kunoza imikorere. Dukurikije imiterere ya waveguide ikoreshwa, modulator zisanzwe za lithium niobate electro-optic modulator ni electro-optic modulator zishushanyije neza, zikozwe mu buryo butaziguye.modulator z'ubuyobozi bw'amajwina modulators za electro-optic zivanze za silikoni.

Muri iki gihe, kunoza uburyo bwo gukata icyuma cyumye bigabanya cyane igihombo cya thin film lithium niobate waveguide, uburyo bwo gushyira ridge bukemura ikibazo cy’uburemere bwinshi bwo gukata icyuma, kandi bwabonye modulator ya lithium niobate electro-optic ifite voltage iri munsi ya 1 V half wave, kandi guhuza n’ikoranabuhanga rya SOI rikuze bihuye n’icyerekezo cya fotoni na electron hybrid integration. Ikoranabuhanga rya lithium niobate icyuma cyoroheje rifite ibyiza byo kubona igihombo gito, ingano nto n’umuvuduko munini wa bandwidth integrated electro-optic modulator kuri chip. Mu buryo bw’imitekerereze, bivugwa ko icyuma cyoroheje cya 3mm lithium niobate push-pullModulator ya M⁃ZUmuvuduko w’amashanyarazi wa 3dB ushobora kugera kuri 400 GHz, kandi umuvuduko w’umuvuduko w’icyuma gipima filime nto cyakozwe mu bushakashatsi cyavuzwe ko urenga gato 100 GHz, ukiri kure y’umupaka w’ibitekerezo. Iterambere rizanwa no kunoza ibipimo by’ibanze by’imiterere ni rike. Mu gihe kizaza, ukurikije uburyo bushya n’imiterere, nko gushushanya electrode isanzwe ya coplanar waveguide nk’umuvuduko w’amashanyarazi wa microwave, imikorere ya modulator ishobora kunozwa kurushaho.

Byongeye kandi, gushyira mu bikorwa uburyo bwo gupakira chips za modulator zivanze no guhuza kuri chips zitandukanye na lasers, detectors n'ibindi bikoresho ni amahirwe n'imbogamizi ku iterambere ry'ejo hazaza rya thin film lithium niobate modulator. Thin film lithium niobate electro-optic modulator izagira uruhare runini muri microwave fotoni, itumanaho ry'amajwi n'ibindi bice.