Ifoto imwe InGaAs ifotora

Fotone imweInGaAs Photodetector

Hamwe niterambere ryihuse rya LiDAR ,.gutahura urumuritekinoroji hamwe nikoranabuhanga rinini rikoreshwa muburyo bwo gukoresha ibinyabiziga bikurikirana byerekana amashusho nabyo bifite ibyo bisabwa cyane, ibyiyumvo byogukurikirana hamwe nigihe cyo gukemura cya detekeri ikoreshwa muburyo bwa tekinoroji yo gutahura urumuri ruto ntishobora guhura nibyifuzo bikenewe. Fotone imwe nigice gito cyingufu zumucyo, kandi detector ifite ubushobozi bwo kumenya fotone imwe nigikoresho cyanyuma cyo kumenya urumuri ruto. Ugereranije na InGaAsAPD ifotora, icyuma gifotora kimwe gishingiye kuri InGaAs Photodetector ya APD ifite umuvuduko mwinshi wo gusubiza, kumva no gukora neza. Kubwibyo, urukurikirane rwubushakashatsi kuri IN-GAAS APD Photodetector imwe rukuruzi ya fotone yakozwe mugihugu ndetse no mumahanga.

Abashakashatsi bo muri kaminuza ya Milan mu Butaliyani babanje gukora icyitegererezo cyibice bibiri kugirango bigane imyitwarire yinzibacyuho ya fotone imweifoto ya avalanchemuri 1997, kandi atanga ibisubizo byigero byumubare wibintu byinzibacyuho biranga fotone imwe ya foton avalanche. Hanyuma muri 2006, abashakashatsi bakoresheje MOCVD kugirango bategure geometrikeInGaAs ifotoraicyuma gifotora kimwe, cyongereye imikorere ya fotone imwe kugera kuri 10% mugabanya urwego rugaragaza no kuzamura umurima wamashanyarazi kuri interineti itandukanye. Muri 2014, mugukomeza kunoza imiterere ya zinc no guhuza imiterere ihagaritse, icyuma gifata fotone imwe gifite ubushobozi bwo gutahura neza, kigera kuri 30%, kandi kigera kumajwi igera kuri 87 ps. Muri 2016, SANZARO M n'abandi. yahujije InGaAs APD Photodetector imwe ya Photon detector hamwe na monolithic ihuriweho na rejistor, yateguye module imwe yo kubara fotone imwe yo kubara ishingiye kuri detector, inasaba uburyo bwo kuzimya imvange bwagabanije cyane amafaranga y’urubura, bityo bikagabanya post-pulse na optique yambukiranya, kandi kugabanya igihe cya jitter kugeza 70 ps. Muri icyo gihe, andi matsinda y’ubushakashatsi nayo yakoze ubushakashatsi kuri InGaAs APDgufotoraicyuma kimwe. Kurugero, Princeton Lightwave yateguye InGaAs / InPAPD detekeri imwe ya fotone ifite imiterere ya planar hanyuma ikayishyira mubucuruzi. Ishuri Rikuru rya Tekinike rya Shanghai ryagerageje imikorere ya fotone imwe ya fotodetector ya APD ikoresheje kuvanaho ububiko bwa zinc hamwe na capacitive balanced gate pulse mode ifite umwijima wa 3.6 × 10 ⁻⁴ / ns pulse kuri pulse ya 1.5 MHz. Joseph P n'abandi. yateguye imiterere ya mesa InGaAs APD Photodetector imwe ya Photon detector hamwe na bande yagutse, kandi yakoresheje InGaAsP nkibikoresho byinjira kugirango ibone ibara ryijimye ridafite ingaruka ku gutahura neza.

Uburyo bwo gukora bwa InGaAs APD Photodetector imwe ya Photon detector ni uburyo bwo gukora kubuntu, ni ukuvuga, APD Photodetector ikeneye kuzimya umuzenguruko wa peripheri nyuma yimvura yibiza, hanyuma igakira nyuma yo kuzimya mugihe runaka. Kugirango ugabanye ingaruka zo kuzimya igihe cyo gutinda, igabanijwemo ubwoko bubiri: Imwe ni ugukoresha umuzenguruko wa pasiporo cyangwa ukora kugirango uzimye, nkumuzunguruko ukora cyane ukoreshwa na R Thew, nibindi Ishusho (a) . Byongeye kandi, ubushobozi bwo gutahura kuri 1550 nm ni 10%, kandi amahirwe ya post-pulse yagabanutse kugera munsi ya 1%. Iya kabiri ni ukumenya kuzimya byihuse no gukira mugenzura urwego rwa bias voltage. Kubera ko bidashingiye ku kugenzura ibitekerezo bya avalanche pulse, igihe cyo gutinda cyo kuzimya cyaragabanutse cyane kandi imikorere yo gutahura neza. Kurugero, LC Comandar nabandi bakoresha uburyo bwamarembo. Hateguwe icyuma gifunga icyuma kimwe gifotora gishingiye kuri InGaAs / InPAPD. Imikorere ya fotone imwe yari hejuru ya 55% kuri 1550 nm, kandi amahirwe ya nyuma ya pulse ya 7% yagezweho. Hashingiwe kuri ibyo, kaminuza yubumenyi n’ikoranabuhanga mu Bushinwa yashyizeho sisitemu ya liDAR ikoresheje fibre yuburyo bumwe icyarimwe ihujwe nubuntu bwubusa InGaAs APD Photodetector imwe ya foteri imwe. Ibikoresho byubushakashatsi byerekanwe mubishushanyo (c) na (d), kandi gutahura ibicu byinshi-burebure bifite uburebure bwa kilometero 12 bigerwaho hamwe nigihe cyo gukemura 1 s hamwe nuburebure bwa metero 15.