DENSE WAVELENGTH BEAM COMBINING WITH VARIABLE FEEDBACK CONTROL
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United States of America Patent
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Apr 18, 2017
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May 13, 2015
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Abstract
An external cavity laser apparatus includes a plurality of laser modules collectively including a plurality of beam emitters that collectively emit a plurality of emitted beams. Each laser module includes a base comprising a plurality of stepped platforms, one of the plurality of beam emitters being secured on each platform of the plurality of stepped platforms, and a plurality of module reflectors, one of the plurality of module reflectors being secured on each of the plurality of stepped platforms to receive radiation from a respective one of the plurality of beam emitters located on a same stepped platform. The external cavity laser apparatus further includes an angular dispersive optic and a polarized beam splitter.
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