Coherent Technologies, Inc.

Timothy William Monarski

Glenn Taylor Bennett

Duane Donald Smith

AnnMarie Oien

A noncollinear pumped solid state Raman laser or amplifier has a pump laser that transversely or noncollinearly pumps a solid state Raman gain material, with an intensity sufficient to produce a stimulated Raman laser output beam. The pump beam and the Raman beam are noncollinear when the Raman beam travels completely across the pump beam within the Raman gain material, or where the Raman beam completely separates physically, at some location in the pumped Raman gain material, from a virtual beam, which is collinear to the pump beam axis, and which has the same entrance spot size and beam divergence as the Raman beam. The device enhances the pump laser beam spatial homogenization to improve the wavefront smoothness and propagation performance from the pump beam to the Raman beam. Other configurations of the device have a plurality of mirrors, or prisms to fold the pump beam to cause the pump beam to pass through the Raman material a plurality of times, which increases the energy transferred from the pump beam to the Raman beam.

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Lafayette, CO, United States of America

Timothy William Monarski