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Conferences > ASSL > 2018 > AM2A > AM2A.8

Highly Scalable Coherent Beam Combining of Femtosecond Fiber Chirped-Pulse Amplifiers

Anke Heilmann, Jérémy Le Dortz, Louis Daniault, Ihsan Fsaifes, Severine Bellanger, Jerome Bourderionnet, Christian Larat, Eric Lallier, Marie Antier, Eric Durand, Christophe Simon-Boisson, Arnaud Brignon, and Jean-Christophe Chanteloup

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Abstract

We report on the coherent beam combining of seven fiber chirped-pulse amplifiers using a highly scalable architecture. A combining efficiency of 48% is obtained in linear regime, yielding 71 W pump-limited average power after compression, with a phase noise between two fibers as low as λ/38 RMS. The experiment is operated at high B-integral, with only little impact on the combining efficiency as well as on the temporal and spatial properties of the combined beam.

© 2018 The Author(s)

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