Abstract: Iyo yekutanga chimiro uye inoshanda nheyo yeAvalanche Photodetector (APD PhotosDetector) Dzinosvitswa, iyo mwempoltion maitiro echimiro chekushandisa chinoongororwa, chimiro chazvino chekutsvaga chinopfupikiswa, uye kusimudzira ramangwana kweApd zvinowanzodzidziswa.
1. Sumo
A photodetector chishandiso chinoshandura zviratidzo zvemazwi mumagetsi emagetsi. MuSemiconductor PhotomdetEctor. Kunyangwe pakupindura kwakanyanya, pin fo photofananidzo inogona kungogadzira maviri maviri elekroni-gomba mbichana zvakanyanya, icho chishandiso chisina kuwana kwemukati. Kuti uwane hurukuro huru, a avancy photodiode (APD) inogona kushandiswa. Iyo yekumusoro mhedzisiro ye APD pane PhotoCurrrent inoenderana neIonization collision mhedzisiro. Pasi pemamwe mamiriro, magetsi akakwirisa uye maburi anogona kuwana simba rakakwana kuti awirirane nedombo rekugadzira maviri emagetsi emagetsi. Maitiro aya chiratidzo, zvekuti vaviri vemagetsi emagetsi maeksofa anogadzirwa nekunyorwa kwechiedza anogona kuburitsa huwandu hukuru hwemagetsi-gomba uye gadzira hombe yechipiri foto. Naizvozvo, APD ine hurukuro yakanyanya uye kuwana kwemukati, iyo inovandudza chiratidzo-kune-ruzha ratio yemushini. APD inonyanya kushandiswa mukureba-kure-kure kana diki yemitambo yekutaurirana yekukurukurirana nezvimwe zvisingakwanisi pane iyo yakagashira simba remagetsi. Parizvino, nyanzvi dzakawanda dzekushandisa dzemhando dzinogona kuva netariro pamusoro pe tarisiro dzeAPD, uye tenda kuti kutsvagurudza kweAPD kunokosha kuti uwedzere kukwikwidza kwenyika dzenzvimbo dzakabatana.
2. Technical kuvandudzwa kweAvalanche Photodetector(APD PhotosdetEctor)
2.1 zvinhu
(1)Si Photomdetector
Si tekinoroji yezvinhu idzo tekinoroji yakakura inoshandiswa zvakanyanya mumunda we microyelectronics, asi haina kukodzera kugadzirira kwemidziyo ye1,31mm uye 1.55mm inowanzogamuchirwa mumunda wekutaurirana kwechokwadi.
(2) ge
Kunyangwe mhinduro yekufungidzira yeGE APD yakakodzera pane zvinodiwa pakurasikirwa kwakaderera uye kupararira kwakaderera muEptical Fiber kutapurirana, kune matambudziko makuru mukugadzirira maitiro. Pamusoro pezvo, ges elektron uye gomba ionization rate ratio iri padyo ne () 1, saka zvakaoma kugadzirira high-performs access.
(3) in0.53ga0.47as / Inp
Iyo inzira inoshanda yekusarudza mu0.53ga0.47as seyekunyora chiedza cheApd uye inp seyekuwedzera denderedzwa. Iyo yekunyudza yepamusoro ye0.47as zvinyorwa ndeye 1.65mm, 1.31mm, 1.55mm (155mm
(4)Ingaas Photodetector/ MukatiPhotomdetector
Nekusarudza Ingaasp sezvo mwenje uchibvisa layer uye inp sezvo iyo multiplies layer, APD nemhinduro yekuwedzera ye1-1.4m. Nekusarudza akasiyana siyana ezvikamu, maitiro akanakisa eiyo chaiwo wavelengths inowanikwa.
(5) Ingaas / inalas
In0.52L0.48as zvinhu zvine bhendi gap (1.47ev) uye haina kutora pawaslength renji ye 1.555mm. Iko kune humbowo hwekutetepa mu0.52l0.48as epitaxial layer inogona kuwana kuwana zvirinani maitiro pane inP seyekuwedzera denderedzwa pasi pemamiriro ezvinhu ehurongwa hwekunyora jekiseni.
(6) Ingaas / Ingaas (p) / inalas uye Ingaas / in (al) gaas / inalas
Iyo yekukanganisa ionization chiyero chezvinhu chinhu chakakosha chinokanganisa kuita kwe APD. Mhedzisiro yacho inoratidza kuti kudzora kweionization chiyero chehuwandu hwekuwanda kunogona kuvandudzwa nekuunza Ingaas Nekushandisa iyo Superlattice chimiro, bhendi Injini inogona kufananidza kudzora bhendi reAsymmetric yebhandi uye neValence Band Kurekodha kwakanyanya kupfuura Valence Band discntinuity (eicl >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Kuenzaniswa neIngaas Bulk Zvigadzirwa, Ingaas / inalas Quagem electron ionization chiyero (a) yakawedzera zvakanyanya, uye maElectrons uye maburi uye maburi anowana simba rekuwedzera. Nekuda kwe δec >> δя δя δ Iyo ratio (k) yeElectron ionation chiyero kune gomba ionization chiyero chinowedzera. Naizvozvo, yakakwira GADZIRA-Bandwidth chigadzirwa (GBW) uye yakaderera ruzha performance inogona kuwanikwa nekushandisa masimba masimba masokisi. Nekudaro, iyi Ingaaas / inalas Quagem tsime dhizaini APD, iyo inogona kuwedzera iyo K kukosha, yakaoma kunyorera kune yekugamuchira. Izvi zvinodaro nekuti iyo yekuwanda chinhu chinokanganisa kupindura kwakanyanya kunogumira neakasviba ikozvino, kwete ruzha ruzhinji. Muchimiro ichi, iyo rima riripo inonyanya kukonzerwa nemhedzisiro yeiyo Ingaas zvakanaka neBand Gap
Kutumira Nguva: Nov-13-2023