Breakthrough photoelectric yekuona tekinoroji (Avalanche photodetector): Chitsauko chitsva mukuburitsa masaini emwenje asina simba
Mutsvagiridzo yesainzi, kunyatsoonekwa kwemasaini emwenje asina simba ndiyo kiyi yekuvhura nzvimbo zhinji dzesainzi.Munguva pfupi yapfuura, budiriro itsva yetsvakiridzo yesainzi yakaunza shanduko pakuona kwemasaini asina simba emwenje.TheAvalanche photodetectornhevedzano yakagadziridzwa neboka rinozivikanwa rekutsvakurudza kwesainzi muChina, nekuita kwayo kwakasiyana uye zvakanakira, ichavhura chitsauko chitsva chekuonekwa kwechiratidzo chisina simba.
Avalanchephotodetectorakatevedzana zvigadzirwa, zvinoenderana neiyo avalanche amplification musimboti weAPD, magnification ndeye gumi kusvika ku100 nguva yepini yakajairwa photoelectric deep detector, ine high sensitivity, yakaderera ruzha, kuita kwakanaka kwekuona uye zvimwe zvakakosha.Kubuda kweiyi nhevedzano yezvigadzirwa kuchabatsira vaongorori kuona nekuongorora zvisina simba masaini emwenje, uye nekusimudzira kudzika kwetsvakiridzo yesainzi.
Iwo makuru maficha eiyi nhevedzano yezvigadzirwa ruzha rwakaderera, kuwana kwakakwira uye optical fiber, spatial coupling sarudzo.Izvi zvinoreva kuti ingave nharaunda yerabhoritari kana yekunze yakaoma nharaunda, chigadzirwa chinogona kuwana chaiyo yekuona chiratidzo chechiratidzo, ichipa yakavimbika data rutsigiro kune vanoongorora.Iyi tekinoroji yehunyanzvi haingonatsiridza kugona kwekuona kwezviratidzo zvemaziso, asi zvakare inoderedza ruzha rwunogadzirwa muchirongwa chekuona uye inovandudza kuona kwechokwadi.
Kunyanya, huwandu hwekupindura spectra hunovhara 300-1100nm uye 800-1700nm, ine 3dB bandwidths kusvika ku200MHz, 500MHz, 1GHz uye 10GHz.Aya maratidziro akasiyana-siyana uye maparamendi anogonesa chigadzirwa kuti chienderane neyakasiyana tsvakiridzo yesainzi zvinodiwa, uye huwandu hwakasiyana hwemashandisirwo, kusanganisira isina kusimba yekuona chiratidzo chechiratidzo, high-speed optical pulse signal yekuona, uye quantum kutaurirana.
Zvakakodzera kutaura kuti chigadzirwa chakavaka-mu avalanche photodiode, yakaderera ruzha amplification circuit, APD bias boost circuit, uye yekuona wavelength yezvese zvakatevedzana zvezvigadzirwa zvinofukidza 300nm-1700nm.Iyi dhizaini inogonesa chigadzirwa kuwana yakakwirira senitivity yekuona, asi zvakare zvinobudirira kuderedza ruzha, kunatsiridza kurongeka kwekuonekwa.Mukuwedzera, izvo zvingasarudzwa zve optical fiber uye spatial coupling inoita kuti chigadzirwa chiwane kunyatsoona zviratidzo munzvimbo dzakasiyana-siyana dzakaoma.
Muchidimbu, kuvandudzwa kweavalanche iyiphotoelectric detectorseries pasina mubvunzo budiriro huru muhunyanzvi hwekuona mafotoelectric.Kubuda kwechigadzirwa ichi kunopa mukana mutsva wekuona isina simba chiratidzo chemwenje pasirese.Isu tinotarisira kuti chigadzirwa ichi chichaita basa rakakura mukutsvagisa kwesainzi mune ramangwana, kukurudzira kufambira mberi kwesainzi, uye kushandira zvirinani kusimudzira nzanga yevanhu.
Nguva yekutumira: Sep-07-2023