A high signal contrast photoelectric detection circuit for optical heterodyne detection

The utility model discloses a high signal contrast photoelectric detection circuit for optical heterodyne detection, this photoelectric detection circuit includes: the photoelectric conversion diode,stride and hinder amplifier circuit, first -order RC low pass filter circuit, homophase proportion op...

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Bibliographische Detailangaben
Hauptverfasser:	WANG WEI, GAO MING, CHEN HAIBIN, LYU WENTAO, HOU HONGLU, ZHANG XIONGXING, WANG KENING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	COLORIMETRY MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS RADIATION PYROMETRY TESTING
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Beschreibung
Zusammenfassung:	The utility model discloses a high signal contrast photoelectric detection circuit for optical heterodyne detection, this photoelectric detection circuit includes: the photoelectric conversion diode,stride and hinder amplifier circuit, first -order RC low pass filter circuit, homophase proportion operation amplifier circuit and interstage feedback circuit. The photoelectric conversion diode is the current signal with light signal conversion, and with electric current signal output to striding the inverting input end that hinders amplifier circuit fortune and put, not non inverting input termination ground, it connects first -order RC low pass filter circuit to stride the output that hinders amplifier circuit, first -order RC low pass filter circuit connects homophase proportion operational circuit's non inverting input end, interstage feedback circuit follows homophase proportion operational circuit's output termination resistance, feed back from the resistance other end again and stride the input that hinder