Fotodetector mudziyo unoshandura masaini echiedza kuita masaini emagetsi.Mune semiconductor photodetector, pikicha-inogadzirwa mutakuri anofara nechiitiko photon inopinda kunze kwedunhu pasi peiyo inoshandiswa bias voltage uye inoumba pikicha inogona kuyerwa.Kunyangwe pakupindura kwakanyanya, pini photodiode inogona chete kuburitsa peya yemaelectron-hole pairs zvakanyanya, chinova chishandiso chisina kuwanikwa mukati.Kuti upindure zvakanyanya, avalanche photodiode (apd) inogona kushandiswa.
Iyo amplification mhedzisiro yeapd pane photocurrent yakavakirwa pane iyo ionization kudhumhana maitiro.Mune mamwe mamiriro ezvinhu, maerekitironi anomhanyisa uye maburi anogona kuwana simba rakakwana rekudhumhana neretisi kugadzira peya itsva yemaelectron-hole pairs.Iyi nzira ndeyekuita kweketani, kuitira kuti peya ye electron-gomba pairs inogadzirwa nekupfekwa kwechiedza inogona kuburitsa nhamba huru ye electron-hole pairs uye kuumba yakakura yechipiri photocurrent.Naizvozvo, apd ine yakanyanya kupindura uye kuwana kwemukati, iyo inovandudza chiratidzo-kune-ruzha chiyero chechishandiso.apd ichanyanya kushandiswa kureba-kure kana diki optical fiber kutaurirana masisitimu ane zvimwe zvinopindwa pane yakagamuchirwa yemagetsi simba.Parizvino, nyanzvi dzakawanda dzemashini eoptical vane tarisiro huru nezve tarisiro yeapd.
Rofea yakazvimiririra yakagadzira photodetector yakabatanidzwa photodiode uye yakaderera ruzha amplifier wedunhu, ichipa zvakasiyana-siyana zvezvigadzirwa, zvevashandisi vetsvagiridzo yesainzi Ipa sevhisi yemhando yechigadzirwa, rutsigiro rwehunyanzvi uye nyore mushure mekutengesa sevhisi.Iyo yazvino chigadzirwa mutsara unosanganisira: analog chiratidzo fotodetector ine amplification, kuwana inogadziriswa photodetector, high speed photodetector, snow market detector (APD), balance detector, nezvimwe.
Feature
Spectral range: 320-1000nm, 850-1650nm, 950-1650nm, 1100-1650nm, 1480-1620nm
3dBbandwidth: 200MHz-50GHz
Optical fiber coupling output2.5Gbps
Modulator mhando
3dBbandwidt:
200MHz, 1GHz, 10GHz, 20GHz, 50GHz
Application
High-speed optical pulse kuonekwa
High-speed optical communication
Microwave link
Brillouin optical fiber sensing system
Nguva yekutumira: Jun-21-2023