Patent ID: 8184363

Claim:
A fiber amplifier system comprising: a master oscillator generating a signal beam; a splitter splitting the signal beam into a plurality of fiber beams; a plurality of phase modulators each receiving one of the fiber beams, said phase modulators providing phase modulation; a plurality of fiber amplifiers each receiving a fiber beam from one of the phase modulators, said fiber amplifiers amplifying the fiber beam, said fiber amplifiers each including an output end; a tapered fiber bundle including an input end and an output end, said input end being coupled to the output end of all of the fiber amplifiers, said output end of the tapered fiber bundle being a combined fiber including portions of all of the fiber amplifiers with fiber cores in a single fiber mass, said tapered fiber bundle outputting a combined output beam; an end cap optically coupled to the output end of the taper fiber bundle, said end cap expanding the output beam from the tapered fiber bundle; and a beam sampler for sampling a portion of the output beam from the end cap and providing a sample beam.