High power optical cavity for end-pumped solid state laser

Details High power optical cavity for end-pumped solid state laser High power optical cavity for end-pumped solid state laser

1991-11-08

1993-08-17

Lee, John D.

Coherent light generators

Particular resonant cavity

Folded cavity

372 99, H01S 3081

Patent

active

052375846

ABSTRACT:
Apparatus for providing a laser light beam or an amplifier light beam that is scalable to very high light beam output power by use of approximately identical optical sections, each section containing one or more laser gain media and one or more fold mirrors, spaced apart from the laser gain media by a distance d. The laser gain media or the fold mirrors, or both, have a curved reflecting surface of radius R. The lengths d and R are chosen to provide a stable optical system within each optical section and to compensate for the development of a thermal lens within each laser gain medium when this medium is pumped by a light source. The optical sections may be concatenated to scale the light beam output power upward without limitation, except for optical absorption and losses that occur at each reflecting surface.

REFERENCES:
patent: 4446559 (1984-05-01), von Bieren

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