Uchungechunge lwe-Eo modulator: Isivinini esiphezulu, i-voltage ephansi, idivayisi yokulawula i-lithium niobate encane enobukhulu obuncane

I-modulator ye-EOUchungechunge: Isivinini esiphezulu, i-voltage ephansi, idivayisi yokulawula i-lithium niobate encane enosayizi omncane

Amagagasi okukhanya endaweni ekhululekile (kanye namagagasi kagesi eminye imvamisa) angamagagasi okusika, futhi isiqondiso sokudlidliza kwamasimu ayo kagesi namagnetic sinokuqondiswa okuhlukahlukene okungenzeka esigabeni esiphambeneyo esiqonde ngqo isiqondiso sokusabalala, okuyimpahla yokukhanya ehlukanisayo. I-Polarization inenani elibalulekile lokusetshenziswa emikhakheni yokuxhumana okubonakalayo okuhlangene, ukutholwa kwezimboni, i-biomedicine, ukuzwa okukude komhlaba, ezempi zanamuhla, ezindiza kanye nolwandle.

Emvelweni, ukuze zikwazi ukuhamba kangcono, izinto eziningi eziphilayo ziye zathuthukisa izinhlelo ezibonakalayo ezingahlukanisa ukuhlukaniswa kokukhanya. Isibonelo, izinyosi zinamehlo amahlanu (amehlo amathathu angawodwa, amehlo amabili ahlanganisiwe), ngalinye linamehlo amancane angu-6,300, asiza izinyosi ukuthola imephu yokuhlukaniswa kokukhanya kuzo zonke izinhlangothi esibhakabhakeni. Inyosi ingasebenzisa imephu yokuhlukaniswa ukuze ithole futhi iholele ngokunembile izinhlobo zayo ezimbalini ezizitholayo. Abantu abanazo izitho zomzimba ezifana nezinyosi ukuze bezwe ukuhlukaniswa kokukhanya, futhi badinga ukusebenzisa imishini yokwenziwa ukuze bezwe futhi balawule ukuhlukaniswa kokukhanya. Isibonelo esivamile ukusetshenziswa kwezingilazi zokuhlukaniswa ukuze kuqondiswe ukukhanya kusuka ezithombeni ezahlukene kuye emehlweni angakwesobunxele nakwesokudla kuma-polarization aqondile, okuyisimiso sama-movie e-3D kuma-cinema.

Ukuthuthukiswa kwamadivayisi okulawula i-optical polarization asebenza kahle kakhulu kuyisihluthulelo sokuthuthukisa ubuchwepheshe bokusetshenziswa kokukhanya okuhlanganisiwe. Amadivayisi ajwayelekile okulawula i-polarization afaka i-polarization state generator, i-scrambler, i-polarization analyzer, i-polarization controller, njll. Eminyakeni yamuva nje, ubuchwepheshe bokuphatha i-optical polarization busheshisa intuthuko futhi buhlangana ngokujulile ezindaweni eziningi ezisafufusa ezibaluleke kakhulu.

Ukuthathaukuxhumana okubonakalayonjengesibonelo, okuqhutshwa yisidingo sokudluliswa kwedatha okukhulu ezikhungweni zedatha, ukuhambisana kwebanga elideukukhanyaubuchwepheshe bokuxhumana busakazeka kancane kancane kuzinhlelo zokusebenza zokuxhumanisa zebanga elifushane ezizwela kakhulu ekusetshenzisweni kwezindleko namandla, futhi ukusetshenziswa kobuchwepheshe bokuphatha i-polarization kunganciphisa ngempumelelo izindleko namandla okusetshenziswa kwezinhlelo zokuxhumana ze-optical ezihambisanayo zebanga elifushane. Kodwa-ke, njengamanje, ukulawulwa kwe-polarization kuqashelwa kakhulu yizingxenye ze-optical ezihlukile, ezivimbela kakhulu ukuthuthukiswa kokusebenza kanye nokunciphisa izindleko. Ngokuthuthuka okusheshayo kobuchwepheshe bokuhlanganisa i-optoelectronic, ukuhlanganiswa kanye ne-chip kuyizindlela ezibalulekile ekuthuthukisweni kwesikhathi esizayo kwamadivayisi okulawula i-optical polarization.
Kodwa-ke, ama-waveguides e-optical alungiselelwe ngamakristalu e-lithium niobate endabuko anezinkinga zokungafani kwe-index encane yokubuyisa kanye nekhono lokubopha insimu ye-optical elibuthakathaka. Ngakolunye uhlangothi, usayizi wedivayisi mkhulu, futhi kunzima ukuhlangabezana nezidingo zokuthuthukiswa kokuhlanganiswa. Ngakolunye uhlangothi, ukusebenzisana kwe-electrooptical kubuthakathaka, futhi i-voltage yokushayela yedivayisi iphezulu.

Eminyakeni yakamuva,amadivayisi e-photonicizinto ezisekelwe ku-lithium niobate thin film ziye zenza intuthuko emlandweni, zafinyelela isivinini esiphezulu kanye nama-voltage aphansi okushayela kunendabukoamadivayisi e-lithium niobate photonic, ngakho-ke ziyathandwa yimboni. Ocwaningweni lwakamuva, i-chip yokulawula i-optical polarization ehlanganisiwe itholakala epulatifomu yokuhlanganiswa kwe-lithium niobate thin film photonic, kufaka phakathi i-polarization generator, i-scrambler, i-polarization analyzer, i-polarization controller kanye neminye imisebenzi eyinhloko. Amapharamitha ayinhloko alawa ma-chip, njengesivinini sokukhiqiza i-polarization, isilinganiso sokuphela kwe-polarization, isivinini sokuphazamiseka kwe-polarization, kanye nesivinini sokulinganisa, asethe amarekhodi amasha omhlaba, futhi abonise ukusebenza okuhle kakhulu ngesivinini esiphezulu, izindleko eziphansi, ukulahleka kokuguquguquka kwe-parasitic, kanye ne-voltage ephansi yokushayela. Imiphumela yocwaningo okokuqala iveza uchungechunge lokusebenza okuphezulu.i-lithium niobateAmadivayisi okulawula ukuvuleka kwe-optical optical, akhiwe ngamayunithi amabili ayisisekelo: 1. Ukujikeleza/ukuqhekeka kwe-polarization, 2. I-Mach-zindel interferometer (incazelo >), njengoba kuboniswe kuMfanekiso 1.