Photodetector Series: Nhanganyaya yeBalance Photodetector

Nhanganyaya kuBalance Photodetector(Optoelectronic Balance Detector)
Balance Photodetector inogona kukamurwa kuita fiber optic coupling mhando uye spatial optical coupling mhando zvichienderana neiyo optical coupling nzira. Mukati, ine maviri akanyatsoenderana mafotodiode, yakaderera-ruzha, yakakwira bandwidth transimpedance amplifier circuit module, uye yekupedzisira-yakaderera ruzha simba module. Iyo ine hunhu hwepamusoro yakajairika mode yekuramba ratio, ultra-low ruzha, uye yakakwira bandwidth, uye inoshandiswa zvakanyanya mumunda wekuwirirana optical communication. Yakave hotspot yekutsvagisa yemabhizinesi nemayunivhesiti munyika dzakasiyana siyana mumakore achangopfuura.
Kushanda musimboti weBalance Photodetector (Optoelectronic Balance Detector)
Iyo Balance Photodetector inoshandisa mafotodiodhi maviri mune reverse bias state seyekugamuchira mwenje unit. Paunenge uchigamuchira chiratidzo chechiedza, iyo fotocurrent inogadzirwa nemafotodiode maviri inobviswa uye yakabatanidzwa kune transimpedance amplifier kushandura iyo yazvino siginecha kuita voltage chiratidzo chekubuda. Iko kushandiswa kwekuzvidzikisira chimiro kunogona kunyatso kudzvanya iyo yakajairwa modhi siginecha yakaunzwa nemunharaunda oscillator mwenje uye yakasviba yazvino, kuwedzera iyo yekusiyanisa modhi chiratidzo, uye kune imwe nhanho inovandudza kugona kwekuona kweisina simba masaini.
Zvakanakira: Yakakwira yakajairika mode yekuramba ratio, yakanyanya kunzwisiswa, uye yakakwirira yekuona bandwidth inogona kusangana akasiyana siyana ekushandisa.
Zvakaipa: Low saturated optical power, yakakodzera chete kune isina kusimba chiedza chekuona, kubatanidzwa kunoda kuvandudzwa.

FIG: Kushanda musimboti dhiyagiramu yechiyero detector
Performance paramita yeBalance Photodetector (OptoelectronicBalance Detector)
1. Kuteerera
Kupindura kunoreva kugona kwephotodiode mukushandura masaini emwenje kuita photocurrent, inova reshiyo yephotocurrent kune simba rechiedza. Kusarudza photodiode ine yakakwirira responsibility inogona kunyatso kuvandudza kunzwisiswa kweBalance Photodetector.
Kupindura kunoreva kugona kwephotodiode mukushandura masaini emwenje kuita photocurrent, inova reshiyo yephotocurrent kune simba rechiedza. Kusarudza photodiode ine yakakwirira responsibility inogona kunyatso kuvandudza kunzwisiswa kweBalance Photodetector.
2. Bandwidth
Iyo bandwidth inomiririra iyo frequency yechiratidzo iyo inobuda chiratidzo amplitude yeBalance Photodetector inoora ne -3dB, uye inoenderana neparasitic capacitance yephotodiode, saizi ye transimpedance, uye kuwana bandwidth chigadzirwa cheanoshanda amplifier.
3. Common mode rejection ratio
Common mode rejection ratio inoshandiswa kuyera dhigirii rekudzvinyirirwa kweakajairwa modhi masiginecha neakaenzana madetector, uye zvigadzirwa zvekutengesa zvinowanzoda kushoma kwakajairwa modhi kurambwa kwe25dB.
4.NEP
Noise Equivalent Power: Simba rekuisa chiratidzo rinodiwa pachiyero-ku-ruzha reshiyo ye1, inova yakakosha parameter yekuyera kuita ruzha rwehurongwa. Izvo zvikamu zvikuru zvekuenzanisa detector ruzha ndeye optical kuparadzira ruzha uye ruzha rwemagetsi.

Kushandiswa kweBalance Photodetector (Optoelectronic Balance Detector)
Mumakore achangopfuura, Balance Photodetector yakashandiswa zvakanyanya muminda yakadai selaser wind radar, laser vibration measure, fiber optic sensing, light light coherent kuona, kuona spectral, kuona gasi, nezvimwewo