Importance

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Abstract

A laser amplifier includes a volume configured to receive pump light from an array of laser diodes pump source, and a gain medium arranged within the volume and configured to amplify light in response to receiving the pump light. The gain medium comprises a first solid-state element configured to emit a first laser radiation having a peak centered at a first peak fluorescence wavelength and a second solid-state element configured to emit a second laser radiation having a peak centered at a second peak fluorescence wavelength. Each of the first and the second solid-state elements contain respective active laser ions. The difference between the first peak fluorescence wavelength and the second peak fluorescence wavelength is larger than or equal to 10 nm and smaller than or equal to 60 nm. The first solid-state element and the second solid-state element are cooled, for instance fluid-cooled.

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First Claim