| Abstract: A laser apparatus includes a plurality of pumps each of which is
configured to emit a corresponding pump laser beam having a unique peak
wavelength. The laser apparatus includes a spectral beam combiner
configured to combine the corresponding pump laser beams into a
substantially spatially-coherent pump laser beam having a pump spectrum
that includes the unique peak wavelengths, and first and second
selectively reflective elements spaced from each other to define a lasing
cavity including a lasing medium therein. The lasing medium generates a
plurality of gain spectra responsive to absorbing the pump laser beam.
Each gain spectrum corresponds to a respective one of the unique peak
wavelengths of the substantially spatially-coherent pump laser beam and
partially overlaps with all other ones of the gain spectra. The
reflective elements are configured to promote emission of a laser beam
from the lasing medium with a peak wavelength common to each gain
spectrum. |
| Filed: 8/1/2008 |
| Application Number: 12/184499 |
| This invention was made with Government support under Contract No. DE-NA0003525 awarded by the United States Department of Energy/National Nuclear Security Administration. The Government has certain rights in the invention. |
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