Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ki-sung Kim0
Jun-youn Kim0
Date of Patent
February 17, 2009
Patent Application Number
11508166
Date Filed
August 23, 2006
Patent Primary Examiner
Patent abstract
Provided is a vertical cavity external surface emitting laser (VECSEL) apparatus in which incidence loss of a pumping beam can be reduced. The VECSEL apparatus includes: a laser chip including: an anti-reflection coating (ARC) layer to which a pumping beam is incident; a low Herpin Index distributed Bragg reflector (LHI-DBR) having a LHI stack structure; and a periodic gain layer that is formed on the LHI-DBR and generates laser light by being excited by the pumping beam; and an external cavity mirror that is installed outside the laser chip and faces the periodic gain layer and constitutes a laser cavity with the LHI-DBR.
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