Coherent light generators – Particular resonant cavity – Unstable resonator
Reexamination Certificate
2005-05-03
2005-05-03
Ip, Paul (Department: 2828)
Coherent light generators
Particular resonant cavity
Unstable resonator
C372S035000
Reexamination Certificate
active
06888872
ABSTRACT:
An apparatus and method for achieving a near diffraction-limited, high-average power output from a solid-state laser oscillator are provided. The solid-state laser uses multiple disk-shaped laser gain media having a large optical aperture placed in an unstable resonator. The laser gain media is provided with optical coatings for operation in the active mirror configuration and is attached to a rigid, cooled substrate, which allows it to maintain a prescribed shape even when experiencing significant thermal load. The resonator is configured so as to preferentially support low order optical modes with transverse dimensions sufficiently large to efficiently fill the gain media apertures. Resonator configurations capable of producing standing wave or traveling wave optical fields are disclosed. The resonator may include means for intracavity correction of an optical phase front by adaptive optics. Also disclosed is an arrangement of resonator gain elements in axisymmetric arrays suitable for integration into a compact and lightweight laser system.
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Harness & Dickey & Pierce P.L.C.
Ip Paul
The Boeing Company
Vy Hung T
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