Menyekanisha InGaAs Photodetector

MenyekanishaInGaAs Photodetector

InGaAs nimwe mubikoresho byiza byo kugera kubisubizo bihanitse kandiPhotodetector yihuta. Ubwa mbere, InGaAs ni ibikoresho bya semiconductor itaziguye, kandi ubugari bwayo burashobora kugengwa nigipimo kiri hagati ya In na Ga, bigafasha kumenya ibimenyetso bya optique byuburebure butandukanye. Muri byo, In0.53Ga0.47Nkuko bihuye neza na latike ya InP substrate kandi ifite coeffisiyoneri yo kwinjiza cyane murwego rwo gutumanaho optique. Nibikoreshwa cyane muguteguragufotorakandi ifite nuburyo bugaragara bwijimye bugezweho nibikorwa byinshingano. Icya kabiri, ibikoresho bya InGaAs na InP bifite umuvuduko mwinshi wa elegitoronike, hamwe numuvuduko wa electron wuzuye wuzuye hafi ya 1 × 107cm / s. Hagati aho, munsi yumuriro wamashanyarazi, ibikoresho bya InGaAs na InP byerekana ingaruka za elegitoronike yumuvuduko ukabije, hamwe n umuvuduko wazo wagera kuri 4 × 107cm / s na 6 × 107cm / s. Nibyiza kugera kumurongo muremure wambukiranya. Kugeza ubu, InGaAs ifotora ni yo nzira nyamukuru ya Photodetector yo gutumanaho neza. Ku isoko, uburyo-bwo guhuza ibintu nuburyo busanzwe. Ibicuruzwa byerekana ibintu hamwe na 25 Gaud / s na 56 Gaud / s birashobora kuba byakozwe cyane. Gitoya-nini, inyuma-ibyabaye, hamwe nubunini bwumurongo-mwinshi-byerekana ibintu nabyo byatejwe imbere, cyane cyane kubisabwa nko kwihuta cyane no kwiyuzuza cyane. Ariko, kubera imbogamizi zuburyo bwabo bwo guhuza, ibyuma byerekana ibintu biragoye guhuza nibindi bikoresho bya optoelectronic. Kubwibyo, hamwe nubwiyongere bukenewe bwo guhuza optoelectronic, waveguide ihujwe na InGaAs fotodetekeri hamwe nibikorwa byiza kandi bikwiranye no kwishyira hamwe byahindutse intumbero yubushakashatsi. Muri byo, ubucuruzi bwa InGaAs mododetector modul ya 70GHz na 110GHz hafi ya zose zifata imiterere yo guhuza imirongo. Ukurikije itandukaniro ryibikoresho bya substrate, waveguide ifatanye na InGaAs fotodetekeri irashobora gushyirwa mubice bibiri: bishingiye kuri INP na Si. Ibikoresho epitaxial kuri InP substrates bifite ubuziranenge kandi birakwiriye muguhimba ibikoresho bikora neza. Ariko, kubikoresho bya matsinda ya III-V byakuze cyangwa bihujwe kuri Si substrate, kubera kudahuza gutandukanye hagati yibikoresho bya InGaAs na Si substrates, ubwiza bwibintu cyangwa interineti birakennye cyane, kandi haracyari umwanya munini wo kunoza imikorere yibikoresho.

Ihagarikwa rya fotodetekeri mubidukikije bitandukanye, cyane cyane mubihe bikabije, nimwe mubintu byingenzi mubikorwa bifatika. Mu myaka yashize, ubwoko bushya bwa detekeri nka perovskite, kama n’ibikoresho-bingana n’ibice bibiri, byashimishije abantu benshi, biracyafite imbogamizi nyinshi mu bijyanye n’umutekano urambye bitewe n’uko ibikoresho ubwabyo bigira ingaruka ku bidukikije. Hagati aho, uburyo bwo guhuza ibikoresho bishya ntiburakura, kandi ubushakashatsi buracyakenewe kugirango umusaruro munini kandi uhuze neza.

Nubwo kwinjiza inductors bishobora kongera umurongo mugari wibikoresho muri iki gihe, ntabwo bikunzwe muri sisitemu yitumanaho rya optique. Kubwibyo, uburyo bwo kwirinda ingaruka mbi kugirango turusheho kugabanya ibipimo bya parasitike RC yibikoresho ni kimwe mubyerekezo byubushakashatsi bwa fotodetike yihuta. Icya kabiri, nkuko umurongo wa fagitire ya fagitire ikomeza kwiyongera, inzitizi iri hagati yumurongo nubushobozi butangira kugaragara. Nubwo amafoto ya Ge / Si hamwe na InGaAs ifotora ifite umurongo wa 3dB urenga 200GHz byavuzwe, inshingano zabo ntabwo zishimishije. Nigute ushobora kongera umurongo mugihe ukomeza kwitabira neza ni ingingo yingenzi yubushakashatsi, bushobora gusaba ko hashyirwaho ibikoresho bishya bihuza inzira (bigenda neza cyane hamwe na coefficient de coiffeux) cyangwa ibikoresho bishya byihuta kugirango bikemuke. Mubyongeyeho, uko igikoresho cyagutse cyiyongera, porogaramu ikoreshwa ya detector muri microwave Photonic ihuza izagenda yiyongera buhoro buhoro. Bitandukanye nimbaraga ntoya ya optique hamwe no kwiyumvisha cyane mu itumanaho rya optique, ibi bintu, hashingiwe ku muyoboro mwinshi, bifite imbaraga nyinshi zuzuye zo gukenera ingufu nyinshi. Nyamara, ibyuma byihuta cyane mubisanzwe bifata ibyubatswe bito, ntabwo rero byoroshye guhimba umuvuduko mwinshi kandi wuzuye-wuzuye-fotodetekeri, kandi nibindi bishya birashobora gukenerwa mugukuramo abatwara no gukwirakwiza ubushyuhe bwibikoresho. Hanyuma, kugabanya umwijima wumuvuduko mwinshi wihuta bikomeza kuba ikibazo fotodetekeri hamwe na lattice idahuye igomba gukemura. Umuyoboro wijimye ahanini ujyanye nubwiza bwa kristu hamwe nubuso bwibintu. Kubwibyo, inzira zingenzi nka heteroepitaxy yo mu rwego rwo hejuru cyangwa guhuza sisitemu idahuye bisaba ubushakashatsi nishoramari.