MULTI-WAVELENGTH LASER

MULTI-WAVELENGTH LASER

PROBLEM TO BE SOLVED: To provide a multi-wavelength laser having a structure in which light emitting points of a plurality of laser elements can easily be brought closer to the optical axis of an optical system. SOLUTION: This multi-wavelength laser device includes a plurality of laser diodes (12, 1...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: KAWAKAMI TOSHIYUKI, TANETANI MOTOTAKA
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
DEVICES USING STIMULATED EMISSION
ELECTRICITY
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Beschreibung
Zusammenfassung:PROBLEM TO BE SOLVED: To provide a multi-wavelength laser having a structure in which light emitting points of a plurality of laser elements can easily be brought closer to the optical axis of an optical system. SOLUTION: This multi-wavelength laser device includes a plurality of laser diodes (12, 13, and 14) which emit light rays of different wavelengths on the same substrate (11) also working as a power supply source. At least one (12) of the diodes (12, 13, and 14) is positioned on the farther rear side than the other diodes (13 and 14) in its light emitting direction. COPYRIGHT: (C)2004,JPO