Method and apparatus for fiber-laser output-beam shaping for beam combination
First Claim
1. A system for combining a plurality of laser beamlets to form a single annular beam using beam combination, the system comprising:
- a plurality of laser sources that emit a plurality of beamlets, wherein each one of the plurality of beamlets has one of a plurality of different wavelengths;
a beam annularizer that includes a plurality of optical units arranged to receive the plurality of beamlets, and configured to convert each beamlet into a respective one of a first plurality of annular beams that each has an annular cross-sectional power profile; and
a beam combiner configured to receive all of the first plurality of annular beams and to combine the first plurality of annular beams into a first annular combined beam.
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Accused Products
Abstract
A method and apparatus for combining a plurality of laser beamlets to form a single annular beam using spectral beam combination. This invention includes a plurality of laser sources that emit a plurality of beamlets, wherein each one of the plurality of beamlets has a different wavelength; a beam annularizer that includes a plurality of optical units arranged to receive the beamlets, and configured to convert each beamlet into a respective annular beam that has an annular cross-sectional power profile; a beam-intersection transform element configured to point each respective one of the plurality of annular beams in an angular intersection arrangement toward a first location; and a spectral beam combiner at the first location configured to combine the plurality of wavelengths in the plurality of annular beams into a first annular spectrally combined beam.
202 Citations
20 Claims
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1. A system for combining a plurality of laser beamlets to form a single annular beam using beam combination, the system comprising:
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a plurality of laser sources that emit a plurality of beamlets, wherein each one of the plurality of beamlets has one of a plurality of different wavelengths; a beam annularizer that includes a plurality of optical units arranged to receive the plurality of beamlets, and configured to convert each beamlet into a respective one of a first plurality of annular beams that each has an annular cross-sectional power profile; and a beam combiner configured to receive all of the first plurality of annular beams and to combine the first plurality of annular beams into a first annular combined beam. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for combining a plurality of laser beamlets to form a single annular beam using beam combination, the method comprising:
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emitting a plurality of laser beamlets, wherein each one of the plurality of beamlets has a different wavelength; annularizing each respective one of the plurality of beamlets into a respective one of a first plurality of annular beams that each has an annular cross-sectional power profile; and receiving and beam combining the first plurality of annular beams into a first annular combined beam. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. A system for combining a plurality of laser beamlets to form a single annular beam using beam combination, the system comprising:
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means for emitting a plurality of laser beamlets, wherein each one of the plurality of beamlets has a different wavelength; means for annularizing each respective one of the plurality of beamlets into a respective one of a first plurality of annular beams that each has an annular cross-sectional power profile; and means for receiving and beam combining the first plurality of annular beams into a first annular combined beam. - View Dependent Claims (20)
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Specification