Photodetector ndi chipangizo chomwe chimatembenuza ma sign a kuwala kukhala chizindikiro chamagetsi.Mu semiconductor photodetector, chonyamulira chopangidwa ndi chithunzi chosangalatsidwa ndi chochitika cha Photon chimalowa mudera lakunja pansi pa voltage yokhazikika ndikupanga chithunzi choyezera.Ngakhale pakuyankhidwa kwakukulu, pin photodiode imatha kutulutsa ma electron-hole awiriawiri kwambiri, chomwe ndi chipangizo chopanda phindu lamkati.Kuti muyankhe kwambiri, avalanche photodiode (apd) angagwiritsidwe ntchito.
Kukulitsa kwa apd pa photocurrent kumatengera kugunda kwa ionization.Pazifukwa zina, ma elekitironi othamanga ndi mabowo amatha kupeza mphamvu zokwanira kugundana ndi lattice kuti apange awiriawiri atsopano a electron-hole.Njirayi ndi machitidwe a unyolo, kotero kuti awiriawiri a ma electron-hole awiri omwe amapangidwa ndi kuyamwa kwa kuwala amatha kupanga mawiri ambiri a ma electron-hole ndikupanga chithunzi chachikulu chachiwiri.Chifukwa chake, apd imakhala ndi kuyankha kwakukulu komanso kupindula kwamkati, komwe kumapangitsa kuti chiwongolero chazidziwitso chikhale chaphokoso cha chipangizocho.apd idzagwiritsidwa ntchito makamaka pamakina ataliatali kapena ang'onoang'ono olumikizirana ma fiber okhala ndi zoletsa zina pamphamvu yolandila yolandila.Pakadali pano, akatswiri ambiri opangira zida zowoneka bwino ali ndi chiyembekezo chokhudzana ndi chiyembekezo cha apd.
Rofea paokha anapanga photodetector Integrated photodiode ndi otsika phokoso amplifier dera, pamene kupereka zosiyanasiyana mankhwala, kwa ogwiritsa ntchito kafukufuku wa sayansi Perekani khalidwe mankhwala mwamakonda utumiki, thandizo luso ndi yabwino pambuyo malonda ntchito.Mzere wamakono wazinthu umaphatikizapo: chithunzithunzi cha analogi ndi kukulitsa, kupeza chithunzi chosinthika, chojambula chothamanga kwambiri, chojambulira msika wa chipale chofewa (APD), chojambulira bwino, ndi zina.
Mbali
Mawonekedwe osiyanasiyana: 320-1000nm, 850-1650nm, 950-1650nm, 1100-1650nm, 1480-1620nm
3dB bandwidth: 200MHz-50GHz
Optical fiber coupling output2.5Gbps
Mtundu wa modulator
3dBbandwidt:
200MHz, 1GHz, 10GHz, 20GHz, 50GHz
Kugwiritsa ntchito
High-speed optical pulse kuzindikira
Kuyankhulana kwapamwamba kwambiri kwa kuwala
Chiyanjano cha Microwave
Brillouin optical fiber sensing system
Nthawi yotumiza: Jun-21-2023