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Diffractive beam combining of a 2.5-kW fiber laser array

Published in:
ASSP 2012, Advanced Solid-State Photonics, 29 January - 1 February 2012.

Summary

Five 500-W fiber amplifiers were coherently combined with 79% efficiency using a diffractive optical element (DOE) combiner, generating a single beam whose M^2 = 1.1 beam quality exceeded that of the inputs.
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Summary

Five 500-W fiber amplifiers were coherently combined with 79% efficiency using a diffractive optical element (DOE) combiner, generating a single beam whose M^2 = 1.1 beam quality exceeded that of the inputs.

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