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Incoherent beam combining of 5.1kW using a 7×1 signal combiner into a 50µm core output fiber

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Abstract

We present results for combining fiber lasers with a total average power of 5.1kW into a 50µm output fiber. The heating of the free-standing 7×1 glass structure is only 12K/kW.

© 2014 Optical Society of America

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