Patent ID: 7072367

Claim:
A method for generating a short-pulse pump laser light comprising: emitting laser light comprising pulses with duration of a few nanoseconds from a semiconductor laser pumpable all-solid laser oscillator comprising an optic which forms parallel beams from a semiconductor laser light by means of a cylindrical telescope consisting of cylindrical lenses and reshaping prisms, with the parallel beams being condensed with a collimator lens to produce high-intensity light, reflecting the laser light by a beam splitter to introduce the laser light into an amplifier to form amplified light; introducing the amplified light into a SBS pulse compressor comprising two condensing optical element cells made of two different materials to generate short-pulse laser light by the stimulated Brillouin scattering effect, one cell being used as an oscillator to stimulate scattered Raman light which is used as seed light and the other cell being used to amplify the seed light and thereby to realize significant decrease in the threshold value for stimulated Raman scattering, to shorten the pulse of the light and form short-pulse light, reintroduce the shorter-pulse light into the amplifier to amplify it to form amplified shorter-pulse light; introducing the amplified shorter-pulse light through a second beam splitter into a second amplifier to amplify it, reflecting the amplified light of the preceding step by the second beam splitter to introduce it into a master amplifier to amplify it, reflecting the amplified light of the preceding step by a mirror into the master amplifier to form short-pulse pump laser light, and splitting the beam in a third beam splitter to pick up the short-pulse pump laser light having a sub-nanosecond pulse duration.