Semiconductor lasers

A semiconductor laser comprises a laser diode (LD) mounted on a semiconductor chip which has a monitoring photodiode (PD) formed therein so as to monitor the laser light output of the laser diode (LD). The cathode of the laser diode (LD) and the anode of the monitoring photodiode (PD) are connected...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YONEYAMA, OSAMU, UMEZAWA, ISAO, SONE, HARUO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PHYSICS
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Beschreibung
Zusammenfassung:	A semiconductor laser comprises a laser diode (LD) mounted on a semiconductor chip which has a monitoring photodiode (PD) formed therein so as to monitor the laser light output of the laser diode (LD). The cathode of the laser diode (LD) and the anode of the monitoring photodiode (PD) are connected together, and a suitable forward voltage for the laser diode (LD) and reverse voltage for the monitor photodiode (PD) is provided by a single power supply.