Nhevedzano yePhotodetector: Nhanganyaya yeBalance Photodetector

Nhanganyaya kuChinoongorora Mufananidzo weBalance(Optoelectronic Balance Detector)
Balance Photodetector inogona kukamurwa kuita fiber optic coupling type uye spatial optical coupling type zvichienderana nenzira ye optical coupling. Mukati, ine ma photodiode maviri anoenderana zvakanyanya, module ye circuit ye ​​transimpedance amplifier ine ruzha rwakaderera, uye module ye ultra-low noise power. Ine hunhu hwe high common mode rejection ratio, ultra-low noise, uye high bandwidth, uye inoshandiswa zvakanyanya mumunda we coherent optical communication. Yave nzvimbo inonyanya kutsvagisa mabhizinesi nemayunivhesiti munyika dzakasiyana-siyana mumakore achangopfuura.
Nheyo yekushanda kweBalance Photodetector (Optoelectronic Balance Detector)
Iyo Balance Photodetector inoshandisa ma photodiode maviri ari mu reverse bias state seyuniti yekugamuchira chiedza. Painogamuchira chiratidzo chechiedza, photocurrent inogadzirwa nema photodiode maviri inobviswa yobatanidzwa kune transimpedance amplifier kuti ishandure chiratidzo chemagetsi kuita chiratidzo chevoltage kuti chibudiswe. Kushandisa chimiro chekuzvideredza kunogona kudzvinyirira zvinobudirira chiratidzo che common mode chinounzwa ne local oscillator light uye dark current, kuwedzera chiratidzo che differential mode, uye kusvika pamwero wakati kuvandudza kugona kwekuona kwezviratidzo zvechiedza zvisina simba.
Zvakanakira: Chiyero chekuramba nzira yakajairika zvakanyanya, kunzwisisika kwakanyanya, uye bandwidth yekuona zvakanyanya zvinogona kusangana nemamiriro akasiyana-siyana ekushandisa.
Zvakashata: Simba remagetsi rakaderera, rakakodzera chete kuona chiedza chisina simba, kubatana kwacho kunofanira kuvandudzwa.

Mufananidzo: Dhayagiramu yepfungwa yekushanda kwechinhu chinoongorora chiyero
Maparamita ekushanda kweBalance Photodetector (Optoelectronic)Chinoongorora Kuenzana)
1. Kuteerera
Kugona kupindura zvinoreva kushanda zvakanaka kwephotodiode mukushandura masaini echiedza kuita photocurrent, inova chiyero chephotocurrent nesimba rechiedza. Kusarudza photodiode ine kugona kupindura kwakanyanya kunogona kuvandudza kunzwisisika kweBalance Photodetector.
Kugona kupindura zvinoreva kushanda zvakanaka kwephotodiode mukushandura masaini echiedza kuita photocurrent, inova chiyero chephotocurrent nesimba rechiedza. Kusarudza photodiode ine kugona kupindura kwakanyanya kunogona kuvandudza kunzwisisika kweBalance Photodetector.
2. Bandwidth
Bandwidth inomiririra frequency yechiratidzo apo amplitude yechiratidzo chekubuda kweBalance Photodetector inoora ne -3dB, uye ine chekuita ne parasitic capacitance ye photodiode, saizi ye transimpedance, uye gain bandwidth product ye operating amplifier.
3. Chiyero chekuramba nzira yakajairika
Chiyero chekuramba common mode chinoshandiswa kuyera mwero wekudziviswa kwezviratidzo zvecommon mode nezvinoongorora zvakaringana, uye zvigadzirwa zvekutengesa zvinowanzoda kurambwa kwecommon mode kwe25dB.
4. NEP
Simba Rakaenzana Neruzha: Simba rechiratidzo chekupinda rinodiwa pachiyero chechiratidzo-kune-ruzha che1, chinova chinhu chakakosha pakuyera mashandiro eruzha rwesisitimu. Zvikamu zvikuru zveruzha rwekuyera rwakaenzana iruzha rwekupararira kwemaziso uye ruzha rwemagetsi.

Kushandiswa kweBalance Photodetector (Optoelectronic Balance Detector)
Mumakore achangopfuura, Balance Photodetector yave ichishandiswa zvakanyanya munzvimbo dzakadai se laser wind radar, laser vibration measurement, fiber optic sensing, weak light coherent detection, spectral detection, gas detection, nezvimwewo. Tsvagiridzo pamusoro pekumhanya kwakanyanya, high bandwidth, low noise, high common mode rejection ratio, uye high sensitivity yema balanced detectors yakaita budiriro uye iri kufambira mberi kusvika pakubatanidzwa kwakanyanya uye kushandiswa kwesimba shoma kuti isangane nemamiriro akasiyana ekushandisa.