SURFACE EMITTING LASER AND OPTICAL COHERENCE TOMOGRAPHY APPARATUS

A surface emitting laser is provided which requires a smaller number of components, and which can reduce the cost. A surface emitting laser includes a cavity constituted by a first reflecting mirror and a second reflecting mirror, and having a resonant wavelength that is changed by changing a cavity...

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Bibliographische Detailangaben
1. Verfasser:	INAO, YASUHISA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS DEVICES USING STIMULATED EMISSION ELECTRICITY MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A surface emitting laser is provided which requires a smaller number of components, and which can reduce the cost. A surface emitting laser includes a cavity constituted by a first reflecting mirror and a second reflecting mirror, and having a resonant wavelength that is changed by changing a cavity length with movement of the first reflecting mirror in a direction facing the second reflecting mirror. The surface emitting laser further includes an active layer arranged in the cavity and emitting light, a third reflecting mirror arranged on the opposite side of the active layer with respect to the second reflecting mirror, and a light receiving element arranged to receive light passing through the third reflecting mirror.