Spectra-Physics Gmbh

Spectra Physics Lasers, Inc.

Jason D Henrie

William L Nighan, Jr

James D Kafka

James B Clark

An optically pumped laser has a gain medium positioned inside of an optical resonator cavity and disposed about a resonator optical axis. An optical pumping source is positioned outside of the optical resonator cavity. A reflective coupler with a coupler body, and an interior volume passing therethrough is positioned proximal to the optical pumping source. Light from the pumping source passes into an entrance aperture of the reflective coupler to an exit aperture of the reflective coupler positioned distal to the optical pumping source. The interior volume of the reflective coupler is bounded by a reflective surface, an entrance aperture and the exit aperture, and is substantially transparent to radiation from the optical pumping source. The reflective surface has a high reflectivity matched to radiation from the optical pumping source. The reflective coupler directs radiation from the optical pumping source into the optical resonator cavity and gain medium, conditioning the numerical aperture and spatial intensity distribution across the exit aperture.

Diode-pumped laser with funnel-coupled pump source

An amplifier uses a two-dimensional array of cw diodes to produce a pump beam. A coupler is positioned to receive the pump beam. The coupler reduces a cross-sectional dimension of the pump beam and creates a modified pump beam. A vanadate gain medium is positioned adjacent to the coupler. The vanadate gain medium absorbs at least a portion of the modified pump beam and is positioned to receive an input beam from an input beam source and produce an amplified output beam.

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Los Altos, CA, United States of America

Jason D Henrie