Umuyoboro mushya wa ultra-rugari 997GHz moderi ya electro-optique

Ultra-Broadband nshya 997GHzamashanyarazi ya optique

Moderi nshya ya ultra-rugari ya electro-optique yashyizeho umurongo wa 997GHz

Vuba aha, itsinda ry’ubushakashatsi i Zurich, mu Busuwisi, ryateje imbere moderi ya ultra-rugari ya electro-optique ikora kuri radiyo ikora kuva kuri 10 MHz kugeza kuri 1.14 THz, ishyiraho umurongo wa 3 dB kuri 997 GHz, ikubye kabiri ibyanditsweho ubu. Iterambere ryitirirwa igishushanyo mbonera cya plasma modulator, gufungura umwanya-mushya kumwanya wa terahertz Photonic uhuza imirongo (PICs).

Kugeza ubu, itumanaho ridafite insinga ahanini rishingiye kuri microwave hamwe na milimetero ya milimetero, ariko ibikoresho bya sprifike yiyi bande yakunze kuba byuzuye. Nubwo itumanaho rya optique rifite umurongo munini, ntirishobora gukoreshwa muburyo bwogukwirakwiza mu mwanya wubusa. Kubwibyo, itumanaho rya THz rifatwa nk "ikiraro cya zahabu" gihuza imiyoboro idafite insinga na fibre optique, itanga igisubizo cyiza kuri 6G hamwe na sisitemu yo gutumanaho byihuse. Ikibazo kiri muburyo imikorere ya electro-optique modulator (nkaLiNbO₃ modulator, InGaAs, hamwe nibikoresho bishingiye kuri silicon) mumurongo wa THz yumurongo uri kure bihagije. Ibimenyetso byerekana neza biragaragara. Umuyoboro mugari ukora ni 14 GHz gusa kandi inshuro nyinshi zitwara abagenzi ni 100 GHz gusa, bikaba biri kure yujuje ibipimo bisabwa kugirango itumanaho rya THz. Muri iki kiganiro, abashakashatsi bakoze moderi nshya ishingiye kuri plasma, bongera neza umurongo wa 3 dB kugeza kuri 997 GHz, ibyo bikaba byikubye kabiri ibyanditsweho ubu, nkuko bigaragara ku gishushanyo cya 1. Iyi ntambwe ntikuraho gusa imipaka y’ikoranabuhanga gakondo ahubwo inagura inzira y’iterambere ry’ejo hazaza h’itumanaho rya THz!

Igishushanyo 1 Plasma electro-optique modulator hamwe numuyoboro mugari wa THz

Iterambere ryibanze ryubu bwoko bushya bwa modulator riri mubuhanga buhanitse bwitwa "plasma effect". Tekereza ko iyo urumuri rumurika hejuru yicyuma cya nanostructure, cyumvikana na electron mubikoresho - electron ziranyeganyega hamwe hamwe nurumuri, bigakora ubwoko bwihariye bwumuraba. Nibyo rwose guhindagurika gushobozamodulatorgukoresha ibimenyetso bya optique hamwe nubushobozi buhanitse cyane. Ibisubizo byubushakashatsi byerekana ko modulator yerekana ibintu byiza biranga imiterere ya DC (itaziguye) kugeza kuri 1.14 THz kandi ifite inyungu zihamye mumurongo wa 500 GHz kugeza 800 GHz.

Kugirango wige cyane imikorere yimikorere ya modulator, itsinda ryubushakashatsi ryubatsemo uburyo burambuye buringaniye bwumuzunguruko kandi bunasesengura ingaruka zuburyo butandukanye kumikorere ya modulator ukoresheje kwigana. Ibisubizo byubushakashatsi birahuza neza nicyitegererezo cyerekana, kurushaho kugenzura imikorere no gutuza kwa modulator. Byongeye kandi, abashakashatsi batanze gahunda yo kunoza. Biteganijwe ko binyuze mubishushanyo mbonera, inshuro zikoreshwa ziyi modulator zishobora kurenza 1THz mugihe kizaza, ndetse zikagera no kuri 2THz!

Ubu bushakashatsi bwerekana ubushobozi bukomeye bwa plasmaamashanyarazi ya electro-optiquemuri THz itumanaho hamwe na fotonike ihuza imiyoboro (PIC). Iki gikoresho, hamwe nibiranga ultra-Broadband, gukora neza no guhuzagurika, bitanga igisubizo gishya kuri THz signal modulation. Mu bihe biri imbere, hamwe nogutezimbere uburyo bwogukora ibikoresho hamwe nuburyo bwo gukora, inshuro zikoreshwa za modulator za plasma ziteganijwe kurenga 2 THz, zikagera ku gipimo cyinshi cyamakuru kandi ikaguka cyane. Kuza kwigihe cya THz ntibisobanura gusa kohereza amakuru byihuse hamwe nubushobozi bunoze bwo kumva, ariko kandi bizateza imbere guhuza byimbitse mubice byinshi nkitumanaho ridafite insinga, kubara neza, no kumenya ubwenge. Iterambere rya moderi ya plasma electro-optique irashobora kuba intambwe yingenzi iganisha ku iterambere ryikoranabuhanga rya THz, ritanga umusingi wo guhuza byihuse byihuta byumuryango wamakuru.