Ubwoko bushya bwa terahertz multiplexer bwikubye kabiri ubushobozi bwamakuru kandi bwongereye cyane itumanaho rya 6G hamwe numuyoboro mugari utigeze ubaho no gutakaza amakuru make.
Abashakashatsi berekanye umurongo mugari wa terahertz multiplexer ikubye kabiri ubushobozi bwamakuru kandi izana iterambere ryimpinduramatwara kuri 6G ndetse no hanze yacyo. (Inkomoko y'amashusho: Amashusho ya Getty)
Igisekuru kizaza itumanaho ridafite insinga, rihagarariwe na tekinoroji ya terahertz, isezeranya guhindura amakuru.
Izi sisitemu zikorera kuri terahertz yumurongo, zitanga umurongo ntagereranywa wo gukwirakwiza amakuru byihuse kandi byitumanaho. Ariko, kugirango tumenye neza ubwo bushobozi, ibibazo bikomeye bya tekiniki bigomba kuneshwa, cyane cyane mugucunga no gukoresha neza ibiboneka.
Iterambere ryibanze ryakemuye iki kibazo: ubwambere ultra-Broadband ihuriweho na terahertz polarisiyasi (de) multiplexer yatahuwe kumurongo wa silicon idafite substrate.
Igishushanyo mbonera gishya cyibasiye itsinda rya sub-terahertz J (220-330 GHz) kandi rigamije guhindura itumanaho kuri 6G ndetse no hanze yarwo. Igikoresho cyikubye kabiri ubushobozi bwamakuru mugihe gikomeza igipimo gito cyo gutakaza amakuru, gitanga inzira kumiyoboro ikora neza kandi yizewe yihuta.
Itsinda ryihishe inyuma y’iyi ntambwe ririmo Porofeseri Withawat Withayachumnankul wo mu Ishuri Rikuru ry’amashanyarazi n’ubukanishi bwa kaminuza ya Adelaide, Dr. Weijie Gao, ubu akaba ari umushakashatsi w’iposita muri kaminuza ya Osaka, na Porofeseri Masayuki Fujita.
Porofeseri Withayachumnankul yagize ati: "Icyifuzo cyo guhuza polarisiyasi ituma imigezi myinshi yoherezwa icyarimwe mu murongo umwe, bikubye kabiri ubushobozi bw’amakuru." Umuyoboro mugari wagerwaho nigikoresho ntiwigeze ubaho murwego urwo arirwo rwose, byerekana gusimbuka gukomeye kubintu byinshi.
Polarisiyonike igizwe ningirakamaro mu itumanaho rigezweho kuko ituma ibimenyetso byinshi bisangira umurongo umwe, byongera ubushobozi bwumuyoboro.
Igikoresho gishya kibigeraho ukoresheje guhuza icyerekezo hamwe na anisotropique ikora neza. Ibi bice byongera polarisiyasi birefringence, bigatuma igipimo kinini cyo kuzimangana (PER) hamwe numuyoboro mugari - ibintu byingenzi biranga sisitemu yitumanaho ya terahertz.
Bitandukanye n'ibishushanyo gakondo bishingiye kubintu bigoye kandi bigendana na asimmetric waveguides, Multlexer nshya ikoresha anisotropic yambaye hamwe gusa na buke buke. Ubu buryo bukoresha neza umurongo mugari utangwa na conical couplers.
Igisubizo ni igice cyagabanijwe kigera kuri 40%, impuzandengo ya PER irenga 20 dB, hamwe no gutakaza byibuze kwinjiza hafi 1 dB. Ibipimo ngenderwaho birenze kure ibyashizweho bisanzwe bya optique na microwave, akenshi bibabazwa numuyoboro mugari no gutakaza byinshi.
Ibikorwa by'itsinda ry'ubushakashatsi ntabwo byongera imikorere ya sisitemu ya terahertz gusa ahubwo binashyiraho urufatiro rw'ibihe bishya mu itumanaho ridafite umugozi. Dr. Gao yagize ati: "Iri shyashya ni ikintu cy'ingenzi mu gufungura ubushobozi bw'itumanaho rya terahertz." Porogaramu zirimo ibisobanuro bihanitse byerekana amashusho, ukuri kwagutse, hamwe na terefone igendanwa izakurikiraho nka 6G.
Gakondo ya terahertz polarisation yo gucunga ibisubizo, nka transducers yuburyo bwa orthogonal (OMTs) ishingiye kumurongo wicyuma cyurukiramende, ihura nimbogamizi zikomeye. Ibyuma byerekana ibyuma byongera igihombo cya ohmic kumurongo mwinshi, kandi uburyo bwo gukora buragoye kubera ibisabwa bya geometrike.
Ibikoresho byinshi bya polarisiyonike, harimo abakoresha interineti ya Mach-Zehnder cyangwa kristu ya fotonike, bitanga uburyo bwiza bwo guhuzagurika no gutakaza igihombo gito ariko akenshi bisaba ubucuruzi hagati yumurongo mugari, guhuza, hamwe ninganda zikomeye.
Ihuza ryerekanwa rikoreshwa cyane muri sisitemu ya optique kandi bisaba polarisiyasi ikomeye ya birefringence kugirango igere ku bunini buke na PER ndende. Nyamara, bigarukira kumurongo mugari no kumva neza kwihanganira inganda.
Multiplexer nshya ikomatanya ibyiza bya conical yerekanwe hamwe hamwe no kwambara neza, gutsinda izo mbogamizi. Kwambika anisotropique byerekana birefringence ihambaye, byemeza PER ndende kumurongo mugari. Ihame ryo gushushanya ryerekana kuva muburyo gakondo, bitanga igisubizo kinini kandi gifatika cyo guhuza terahertz.
Iyemezwa ryikigereranyo rya multiplexer ryemeje imikorere idasanzwe. Igikoresho gikora neza murwego rwa 225-330 GHz, kigera ku gice kinini cya 37.8% mugihe gikomeza PER hejuru ya 20 dB. Ingano yoroheje kandi ihuza nibikorwa bisanzwe byo gukora bituma ikwirakwira cyane.
Dr. Gao yagize ati: "Iri shyashya ntabwo ryongera imikorere ya sisitemu y’itumanaho rya terahertz gusa ahubwo rinatanga inzira ku miyoboro ikomeye kandi yizewe yihuta cyane."
Ibishobora gukoreshwa muburyo bwikoranabuhanga birenze sisitemu yitumanaho. Mugutezimbere imikoreshereze yimikorere, multiplexer irashobora gutwara iterambere mubice nka radar, amashusho, na enterineti. Porofeseri Withayachumnankul yagize ati: "Mu myaka icumi, turateganya ko ubwo buhanga bwa terahertz buzakoreshwa kandi bugahuzwa mu nganda zitandukanye."
Multiplexer irashobora kandi guhuzwa hamwe nibikoresho byabanjirije kumurika byakozwe nitsinda, bigafasha imikorere yitumanaho ryambere kumurongo umwe. Uku guhuza kwerekana ibintu byinshi hamwe nubunini bwa platifike ikora neza ya dielectric waveguide platform.
Ubushakashatsi bwakozwe n'itsinda bwasohotse mu kinyamakuru Laser & Photonic Reviews, bushimangira akamaro kabo mu guteza imbere ikoranabuhanga rya terahertz. Porofeseri Fujita yagize ati: "Mu gutsinda inzitizi zikomeye za tekiniki, biteganijwe ko udushya tuzashishikaza ibikorwa n’ubushakashatsi muri urwo rwego."
Abashakashatsi bateganya ko akazi kabo kazatera imbaraga mu bikorwa bishya ndetse no kurushaho kunoza ikoranabuhanga mu myaka iri imbere, amaherezo bikazana prototypes n'ibicuruzwa.
Iyi multiplexer yerekana intambwe igaragara imbere mugukingura ubushobozi bwitumanaho rya terahertz. Ishiraho ibipimo bishya kubikoresho bya terahertz bihujwe hamwe nibikorwa byayo bitigeze bibaho.
Mugihe icyifuzo cyumuyoboro wogutumanaho wihuta, ufite ubushobozi buke gikomeje kwiyongera, udushya nkuyu tuzagira uruhare runini mugushiraho ejo hazaza h’ikoranabuhanga ridafite umugozi.
Igihe cyo kohereza: Ukuboza-16-2024