I-Eo modulatorUchungechunge: Isivinini esikhulu, i-voltage ephansi, usayizi omncane we-lithium niobate idivayisi yokulawula ifilimu encane
Amagagasi okukhanya endaweni ekhululekile (kanye namagagasi kagesi wezinye imvamisa) angamagagasi e-shear, futhi isiqondiso sokudlidliza kwezindawo zawo zikagesi nozibuthe sinokuma okuhlukahlukene okungenzeka esigabeni esiphambanayo ngokuqondana nesiqondiso sokusakazeka, okuyindawo ye-polarization. yokukhanya.I-polarization inenani lesicelo elibalulekile emikhakheni yokuxhumana okuhambisanayo kokubona, ukutholwa kwezimboni, i-biomedicine, inzwa ekude yomhlaba, amasosha esimanje, ezondiza kanye nolwandle.
Emvelweni, ukuze ukwazi ukuzulazula kangcono, izinto eziningi eziphilayo ziye zashintsha amasistimu okubukwayo angakwazi ukuhlukanisa i-polarization yokukhanya.Ngokwesibonelo, izinyosi zinamehlo amahlanu (amehlo amathathu angawodwa, amabili ahlangene), ngalinye linamehlo amancane angu-6 300, asiza izinyosi ukuba zithole ibalazwe lokuhlukanisa ukukhanya kuzo zonke izinhlangothi esibhakabhakeni.Inyosi ingasebenzisa imephu ye-polarization ukuze ithole futhi iholele ngokunembile izinhlobo zayo ezimbalini ezitholayo.Abantu abanazo izitho zomzimba ezifana nezinyosi ukuzwa ukuhlukaniswa kokukhanya, futhi badinga ukusebenzisa amathuluzi okwenziwa ukuzwa nokukhohlisa ukuhlukaniswa kokukhanya.Isibonelo esijwayelekile ukusetshenziswa kwezingilazi ezihlukanisayo ukuze kuqondiswe ukukhanya okuvela ezithombeni ezihlukene kuya emehlweni angakwesokunxele nangakwesokudla kuma-perpendicular polarizations, okuwumgomo wamamuvi e-3D esinema.
Ukuthuthukiswa kwamadivayisi okulawula i-optical polarization asebenza kahle kuyisihluthulelo sokuthuthukisa ubuchwepheshe bokufaka ukukhanya kwe-polarized.Amadivayisi ajwayelekile okulawula i-polarization ahlanganisa i-polarization state generator, i-scrambler, i-polarization analyzer, isilawuli se-polarization, njll. Eminyakeni yakamuva, ubuchwepheshe bokukhohlisa be-optical polarization busheshisa inqubekelaphambili futhi buhlanganisa ngokujulile ezindaweni eziningi ezivelayo ezinokubaluleka okukhulu.
Ukuthathaukuxhumana opticalnjengesibonelo, eqhutshwa isidingo sokudluliswa kwedatha okukhulu ezikhungweni zedatha, ukuhambisana kwebanga elideopticalubuchwepheshe bezokuxhumana bubhebhetheka kancane kancane kuzinhlelo zokusebenza zokuxhumanisa zamabanga amafushane ezizwela kakhulu izindleko kanye nokusetshenziswa kwamandla, futhi ukusetshenziswa kobuchwepheshe bokukhohlisa kwe-polarization kunganciphisa ngempumelelo izindleko namandla okusetshenziswa kwezinhlelo zokuxhumana zebanga elifushane ezihambisanayo.Kodwa-ke, okwamanje, ukulawulwa kwe-polarization kubonakala ikakhulukazi ngezingxenye ezibonakalayo ezibonakalayo, ezikhawulela kakhulu ukuthuthukiswa kokusebenza kanye nokwehliswa kwezindleko.Ngokuthuthuka okusheshayo kobuchwepheshe bokuhlanganiswa kwe-optoelectronic, ukuhlanganiswa kanye ne-chip kuyizitayela ezibalulekile ekuthuthukisweni kwesikhathi esizayo kwamadivayisi okulawula i-optical polarization.
Kodwa-ke, amagagasi okukhanya alungiswe ngamakristalu e-lithium niobate endabuko anobubi bokuhluka okuncane kwenkomba ye-refractive kanye nekhono elibuthakathaka lokubopha inkambu yokubona.Ngakolunye uhlangothi, usayizi wedivayisi mkhulu, futhi kunzima ukuhlangabezana nezidingo zokuthuthukiswa kokuhlanganiswa.Ngakolunye uhlangothi, ukusebenzisana kwe-electrooptical akunamandla, futhi i-voltage yokushayela yedivayisi iphezulu.
Eminyakeni yakamuva,amadivaysi photonicngokusekelwe ezintweni zefilimu ezincanyana ze-lithium niobate zenze inqubekelaphambili eyingqophamlando, zafinyelela isivinini esiphezulu kanye nomthamo ophansi wokushayela kunowendabuko.Amadivayisi we-lithium niobate photonic, ngakho-ke bathandwa yimboni.Ocwaningweni lwakamuva, i-chip edidiyelwe yokulawula i-optical polarization iyabonakala ku-lithium niobate ifilimu encane yokuhlanganisa i-photonic yesikhulumi, okuhlanganisa i-polarization generator, i-scrambler, i-polarization analyzer, isilawuli se-polarization neminye imisebenzi eyinhloko.Imingcele eyinhloko yalawa ma-chips, njengejubane lokukhiqiza i-polarization, isilinganiso sokuqothulwa kwe-polarization, isivinini sokuphazamiseka kwe-polarization, nesivinini sokulinganisa, asethe amarekhodi omhlaba amasha, futhi abonise ukusebenza okuhle kakhulu ngesivinini esiphezulu, izindleko eziphansi, akukho ukulahlekelwa kwe-modulation ye-parasitic, kanye nephansi. drive voltage.Imiphumela yocwaningo okokuqala ngqa ibona uchungechunge lokusebenza okuphezululithium niobateamadivaysi okulawula i-polarization yefilimu emincane, akhiwe amayunithi amabili ayisisekelo: 1. I-polarization rotation/splitter, 2. I-Mach-zindel interferometer (incazelo >), njengoba kuboniswe kuMfanekiso 1.
Isikhathi sokuthumela: Dec-26-2023