End pumping vertical external cavity surface emitting laser
AssigneeSamsung Electronics Co., Ltd.
InventorsKi-sung KIM, Taek Kim
Life of this patent
Estimating the term…
Abstract
A vertical external cavity surface emitting laser (VECSEL) is provided, in which the incident loss of a pumping beam is reduced. The VECSEL device comprising: a transparent substrate; an optical pump radiating a pumping beam onto a first surface of the transparent substrate; a first anti-reflection coating (ARC) layer formed of a first light-transmitting insulating material on a second surface of the transparent substrate to reduce loss of the pumping beam; a distributed Bragg reflector (DBR) layer formed on the first ARC layer; a periodic gain layer formed on the DBR layer; and an external cavity mirror facing the periodic gain layer.
Claims20
A vertical external cavity surface emitting laser (VECSEL) device comprising:
- a transparent substrate;
- an optical pump radiating a pumping beam onto a first surface of the transparent substrate;
- a first anti-reflection coating (ARC) layer of a first light-transmitting insulating material on a second surface of the transparent substrate to reduce incident loss of the pumping beam;
- a distributed Bragg reflector (DBR) layer located on the first ARC layer;
- a periodic gain layer formed on the DBR layer;
- and
- an external cavity mirror facing the periodic gain layer,
- wherein the DBR layer is disposed between the first ARC layer and the periodic gain layer.
A vertical external cavity surface emitting laser (VECSEL) device comprising:
- a transparent substrate having a first surface and a second surface;
- an optical pump radiating a pumping beam onto the first surface of the transparent substrate;
- a first anti-reflection coating (ARC) layer of a first light-transmitting insulating material on the second surface of the transparent substrate to reduce incident loss of the pumping beam;
- a second ARC layer made of a second light transmitting insulating material on the first surface of the transparent substrate to reduce the incident loss of the pumping beam
- a distributed Bragg reflector (DBR) layer located on the first ARC layer;
- a periodic gain layer formed on the DBR layer;
- and
- an external cavity mirror facing the periodic gain layer,
- wherein the DBR layer is disposed between the first ARC layer and the periodic gain layer.
Dependencies are inferred from the claim text.