Constant-power driving device for semiconductor laser

The utility model discloses a constant power driving device for a semiconductor laser. The constant power driving device comprises a controller, a voltage-controlled constant current source circuit, a power detection amplification circuit, a power setting circuit and a current detection circuit, the...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	WANG XIAOXIAN, GUO JIAN, WANG NAN, SONG YUNFENG, WANG HUIFENG, LIU PANZHI, HUANG HE, LIU YUFENG, CHAI CAIPING, GAO RONG, SONG SHANGZHEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CONTROL OR REGULATING SYSTEMS IN GENERAL CONTROLLING DEVICES USING STIMULATED EMISSION ELECTRICITY FUNCTIONAL ELEMENTS OF SUCH SYSTEMS MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS PHYSICS REGULATING
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Beschreibung
Zusammenfassung:	The utility model discloses a constant power driving device for a semiconductor laser. The constant power driving device comprises a controller, a voltage-controlled constant current source circuit, a power detection amplification circuit, a power setting circuit and a current detection circuit, the input end of the power detection amplification circuit is connected with the semiconductor laser, and the output end of the power detection amplification circuit is connected with the third port of the controller; the output end of the power setting circuit is connected with the second port of the controller; the input end of the voltage-controlled constant current source circuit is connected with a first port of the controller, and the output end of the voltage-controlled constant current source circuit is connected with the semiconductor laser; and the current detection circuit is connected with an eighth port of the controller. According to the utility model, the controller is tightly matched with the temperatu