Electro-optiki yo mu bwoko bwa Polarizationkugenzura bikorwa hakoreshejwe uburyo bwa femtosecond laser na modulation ya liquid crystal
Abashakashatsi bo mu Budage bakoze uburyo bushya bwo kugenzura ibimenyetso by'urumuri binyuze mu guhuza inyandiko ya laser ya femtosecond na crystal y'amazimodulation ya electro-optique. Mu gushyira urwego rwa kristu y'amazi mu muyoboro w'amazi, uburyo bwo kugenzura imiterere ya polarization y'imirasire y'amashanyarazi bugerwaho. Ubu buryo butanga amahirwe mashya ku bikoresho bishingiye kuri chip n'imiyoboro ikomeye ya photonic byakozwe hakoreshejwe ikoranabuhanga ryo kwandika rya laser ya femtosecond. Itsinda ry'ubushakashatsi ryasobanuye uburyo bakoze plaque z'umuraba zishobora guhinduka mu miyoboro ya silikoni ivanze. Iyo voltage ishyizwe kuri kristu y'amazi, molekile za kristu y'amazi zirazenguruka, ibyo bigatuma imiterere ya polarization y'urumuri rwoherezwa muri waveguide. Mu bushakashatsi bwakozwe, abashakashatsi bashoboye guhindura burundu polarization y'urumuri ku mpande ebyiri zitandukanye zigaragara (Ishusho ya 1).
Guhuza ikoranabuhanga ribiri ry'ingenzi kugira ngo hagerwe ku iterambere rigezweho mu bikoresho bya 3D fotonic integrated
Ubushobozi bwa laser za femtosecond bwo kwandika neza waveguides imbere mu bikoresho, aho kwandika hejuru gusa, butuma ziba ikoranabuhanga ryiza ryo kongera umubare wa waveguides kuri chip imwe. Iri koranabuhanga rikora hifashishijwe icyuma gipima imbaraga nyinshi cya laser imbere mu bikoresho bibonerana. Iyo imbaraga z'urumuri zigeze ku rwego runaka, icyuma gihindura imiterere y'igikoresho aho gikoreshwa, kimwe n'ikaramu ifite ubushobozi bwa micron.
Itsinda ry’ubushakashatsi ryahuje uburyo bubiri bw’ibanze bwa fotoni kugira ngo rishyire urwego rwa kristu z’amazi muri waveguide. Uko uruziga runyura muri waveguide no muri kristu y’amazi, imiterere n’ihindagurika ry’urumuri birahinduka iyo hakoreshejwe ingufu z’amashanyarazi. Nyuma yaho, uruziga rwahinduwe ruzakomeza gukwirakwira mu gice cya kabiri cya waveguide, bityo rugera ku kohereza ikimenyetso cy’urumuri gifite imiterere ya modulation. Ubu buryo bwo guhuza ikoranabuhanga bubiri butuma habaho ibyiza byombi mu gikoresho kimwe: ku ruhande rumwe, ubucucike bwinshi bw’urumuri buterwa n’ingaruka za waveguide, no ku rundi ruhande, ubushobozi bwo guhinduranya kristu y’amazi. Ubu bushakashatsi bufungura uburyo bushya bwo gukoresha imiterere ya kristu z’amazi mu gushyira waveguide mu bunini rusange bw’ibikoresho nk’ukomodulatorskuriibikoresho byo gufotora.
Ishusho ya 1 Abashakashatsi bashyize ibice bya kristu y'amazi mu miyoboro y'amazi yakozwe hakoreshejwe uburyo bwa laser butaziguye, kandi igikoresho cyavuyemo gishobora gukoreshwa mu guhindura imiterere y'urumuri runyura muri iyo miyoboro y'amazi.
Ikoreshwa n'akamaro ka kristu y'amazi mu guhinduranya umuyoboro wa laser ya femtosecond
Nubwomodulation y'amajwiMuri femtosecond laser writing waveguides byagezweho mbere cyane cyane hakoreshejwe ubushyuhe bwo mu gace ku mashanyarazi, muri ubu bushakashatsi, polarization yagenzurwaga neza hakoreshejwe kristu z'amazi. Abashakashatsi baragira bati: "Uburyo bwacu bufite inyungu nyinshi zishobora kubaho: gukoresha ingufu nke, ubushobozi bwo gutunganya amashanyarazi ku giti cyayo ku giti cyayo, no kugabanya kwivanga hagati y'amashanyarazi yegeranye." Kugira ngo bapime imikorere y'igikoresho, itsinda ryashyize laser muri waveguides maze rihindura urumuri binyuze mu guhindura voltage ikoreshwa ku gice cya kristu y'amazi. Impinduka za polarization zagaragaye ku musaruro zihuye n'ibyo abantu biteze. Abashakashatsi banasanze nyuma y'uko kristu y'amazi ihujwe na waveguides, imiterere y'impinduka za kristu y'amazi ntiyahindutse. Abashakashatsi bashimangira ko ubushakashatsi ari ikimenyetso cy'igitekerezo gusa, bityo haracyari akazi kenshi ko gukorwa mbere y'uko ikoranabuhanga rikoreshwa mu bikorwa. Urugero, ibikoresho bigezweho bihindura amashanyarazi yose mu buryo bumwe, bityo itsinda ririmo gukora kugira ngo rigenzure buri waveguides ku giti cyayo ku giti cyayo.
Igihe cyo kohereza: Gicurasi-14-2024