A chowunikira zithunzindi chipangizo chomwe chimasintha zizindikiro za kuwala kukhala zizindikiro zamagetsi. Muchowunikira zithunzi cha semiconductor, chonyamulira chopangidwa ndi chithunzi chomwe chimayambitsidwa ndi photon yomwe yachitika chimalowa mu dera lakunja pansi pa mphamvu ya bias yomwe imagwiritsidwa ntchito ndipo chimapanga photocurrent yoyezeka. Ngakhale pa mphamvu yayikulu yoyankha, pin photodiode imatha kupanga mawiri awiri a ma electron-hole osapitirira, omwe ndi chipangizo chopanda phindu lamkati. Kuti ayankhe bwino,chiphalaphala cha phiri la photodiode(apd) ingagwiritsidwe ntchito.
Mphamvu ya apd pa photocurrent imachokera ku ionization collision effect. Pazifukwa zina, ma elekitironi ndi mabowo othamanga amatha kupeza mphamvu zokwanira kuti agundane ndi lattice kuti apange awiriawiri atsopano a ma elekitironi ndi mabowo. Njirayi ndi chain reaction, kotero kuti awiriawiri a ma elekitironi ndi mabowo opangidwa ndi kuwala amatha kupanga mawiri ambiri a ma elekitironi ndi mabowo ndikupanga photocurrent yayikulu yachiwiri. Chifukwa chake, apd ili ndi kuyankha kwakukulu komanso kupindula kwamkati, zomwe zimathandizira chiŵerengero cha chizindikiro-ku-phokoso cha chipangizocho. apd idzagwiritsidwa ntchito makamaka m'makina olumikizirana akutali kapena ang'onoang'ono a optical fiber okhala ndi zoletsa zina pa mphamvu ya kuwala yolandiridwa. Pakadali pano, akatswiri ambiri a zida za optical ali ndi chiyembekezo chachikulu cha kuthekera kwa apd.
Rofea idapanga yokha chowunikira zithunzi cholumikizidwa ndi chowunikira chotsika phokoso, pomwe ikupereka zinthu zosiyanasiyana, kwa ogwiritsa ntchito kafukufuku wasayansi. Imapereka ntchito yabwino kwambiri yosinthira zinthu, chithandizo chaukadaulo komanso ntchito yabwino yogulitsa pambuyo pogulitsa. Mzere wazinthu zomwe zilipo pano ukuphatikizapo: chowunikira zithunzi cha chizindikiro cha analog chokhala ndi kukulitsa, chowunikira chosinthika cha gain,chowunikira zithunzi cha liwiro lapamwamba, chowunikira msika wa chipale chofewa (APD), chowunikira bwino, ndi zina zotero.
Mbali
Ma Spectral osiyanasiyana: 320-1000nm, 850-1650nm, 950-1650nm, 1100-1650nm, 1480-1620nm
3dBbandwidth：200MHz-50GHz
Kuwala CHIKWANGWANI cholumikizira linanena bungwe 2.5Gbps
Mtundu wa modulator
3dBbandwidt：
200MHz, 1GHz, 10GHz, 20GHz, 50GHz
Kugwiritsa ntchito
Kuzindikira kuthamanga kwa kuwala kwamphamvu kwambiri
Kulankhulana kwachangu kwambiri kwa kuwala
Ulalo wa mayikirowevu
Dongosolo lozindikira ulusi wa Brillouin
Nthawi yotumizira: Juni-21-2023