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Incoherent beam combining of continuous-wave and pulsed Yb-doped fiber amplifiers

 
: Schreiber, T.; Wirth, C.; Schmidt, O.; Andersen, T.V.; Tsybin, I.; Böhme, S.; Peschel, T.; Brückner, F.; Clausnitzer, T.; Röser, F.; Eberhardt, R.; Limpert, J.; Tünnermann, A.

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IEEE Journal of Selected Topics in Quantum Electronics 15 (2009), No.2, pp.354-360
ISSN: 1077-260X
English
Journal Article
Fraunhofer IOF ()
photonic crystal fiber; high-average-power; laser; energy

Abstract
We review the technique of incoherent beam combining and show experimentally the combination of four continuous wave fiber amplifiers to an average power of 2 kW and four pulsed 2 ns fiber amplifiers to an average power of 187 W (pulse energy 3.7 mJ) using binary dielectric gratings. The scaling potential and limitations are discussed in detail.

: http://publica.fraunhofer.de/documents/N-94738.html