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apparatus is operable to amplify signal pulses to high energy in the erbium-doped fiber …

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(57) ABSTRACT A method and apparatus for combining a plurality of laser beamlets to form
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In general, in one aspect, the invention features an apparatus that includes a photonic
crystal fiber configured to guide a mode of electromagnetic radiation at a wavelength, W …

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3,467,098 3,659,915 3,858,577 4,076,380 4,099,835 4,170,997 4,583,526 4,652,083
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