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US 2008/0304534 A1Published application
Power scaleable thin disk lasers
AssigneeThe Boeing Company
InventorsDavid S. Sumida, Hans W. Bruesselbach
Life of this patent
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Abstract
A thin disk laser includes a thin disk of a host material incorporating a laser gain medium. The disk has opposite first and second surfaces, at least one of which is non-planar. The first surface is coated with a high reflectivity coating. The second surface has an anti-reflection coating thereon. The shape and mounting of the laser is such that mismatch of the coefficients of thermal expansion between the disk laser and the mount does not affect scaling of the laser to larger size disks for higher power lasers
Claims34
A laser, comprising:
- a thin disk of host material doped with a laser gain medium and having opposite first and second surfaces, wherein at least one of the two surfaces is non-planar;
- the first surface having a planar, a concave or a convex shape and being coated with a high reflectivity (HR) coating;
- and,
- the second surface having an anti-reflection (AR) coating thereon.
1 more element
A laser assembly, comprising:
- a thin disk laser having opposite first and second surfaces, wherein at least one of the surfaces is non-planar, the first surface having a planar, concave or convex shape and a high reflectivity (HR) coating thereon, the second surface having a flat, a concave or a convex shape with an antireflection (AR) coating thereon;
- a laser housing having a hollow interior for circulating a coolant fluid over the first surface and for receiving and supporting the thin disk laser at a peripheral edge thereof such that the first surface faces toward the hollow interior of the housing, the housing further including a seal formed at the peripheral edge of the laser disk so as to sealingly retain both the laser disk and the coolant fluid therein;
- and,
- apparatus for illuminating the second surface with a pump beam of light to excite the thin disk laser.
1 more element
Dependencies are inferred from the claim text.