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US 4,357,704 AGranted
Disc or slab laser apparatus employing compound parabolic concentrator
AssigneeScience Applications, Inc.
InventorWalter Koechner
Life of this patent
Estimating the term…
Abstract
An improved laser apparatus is provided wherein a laser and a pump source comprising an array of GaAs or GaAlAs light emitting laser diodes or of excimer fluorescors or lasers which emits a large cross section beam of generally collimated pumping radiation are coupled by flux concentrating means comprising a compound parabolic concentrator.
Claims19
In combination, a laser medium body having a pair of similar generally parallel opposite planar major faces and having a thickness dimension between said faces which is small as compared to a transverse dimension of said faces, said body also having a pumping surface portion;
- a laser pump panel having a surface portion from which it is adapted to emit a relatively large cross section beam of generally collimated laser pumping radiation;
- and flux concentrating coupling means for said pump and laser medium body, said means comprising a compound parabolic concentrator having an inlet end opening across which said surface portion of the pump panel extends for direction of pumping radiation thereinto, and having an outlet end opening of reduced area across which the pumping surface portion of said laser medium body extends for receipt of concentrated radiation from said pump panel.
Dependencies are inferred from the claim text.