Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2006-05-04
2009-02-03
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C372S050100, C372S069000, C372S070000, C372S092000
Reexamination Certificate
active
07486714
ABSTRACT:
Provided is a vertical external cavity surface emitting laser (VECSEL) in which a pump laser is integrated with the rest of the VECSEL as a single body. The VECSEL includes: a first active layer that has a quantum well structure and generates light with a first wavelength; a reflection layer formed on a first surface of the first active layer; an external mirror that is separated by a predetermined distance from a second surface of the first active layer, transmits a portion of light generated by the first active layer to the outside, and reflects the rest of the light generated by the first active layer to be absorbed by the first active layer; and a pump laser disposed on the reflection layer as a single body to provide light with a second wavelength which is shorter than the first wavelength to the first active layer for optical pumping.
REFERENCES:
patent: 6339607 (2002-01-01), Jiang et al.
patent: 6556610 (2003-04-01), Jiang et al.
patent: 6580741 (2003-06-01), Jiang et al.
patent: 6778582 (2004-08-01), Mooradian
Buchanan & Ingersoll & Rooney PC
Harvey Minsun
Samsung Electronics Co,. Ltd.
Zhang Yuanda
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