Patent ID: 8094689

Claim:
A laser system, comprising: a first set of laser apparatuses, each laser apparatus of the first set including a lasing cavity having a Raman lasing medium positioned therein, each laser apparatus of the first set configured to emit a corresponding spectrally-consolidated laser beam at a unique lasing peak wavelength responsive to the Raman lasing medium thereof absorbing a spectrally-combined, substantially spatially-coherent pump laser beam; and a spectral beam combiner configured to combine the corresponding spectrally-consolidated laser beams into an upper-stage substantially spatially-coherent laser beam; an additional lasing cavity including an additional lasing medium positioned therein, the additional lasing medium adapted to output an additional spectrally-consolidated laser beam responsive to absorbing the upper stage substantially spatially-coherent laser beam; second sets of laser apparatuses, each second set associated with a corresponding one of the laser apparatuses of the first set, each laser apparatus of a corresponding second set configured to emit a corresponding spectrally-consolidated pump laser beam having a unique peak wavelength; and wherein each laser apparatus of the first set includes a corresponding spectral beam combiner configured to combine the corresponding spectrally-consolidated pump laser beams received from the corresponding second set associated therewith into the corresponding spectrally-combined, substantially spatially-coherent pump laser beam.