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Coherent beam combining of high power quasi continuous wave tapered amplifiers

Abstract : We demonstrate coherent beam combining of four high brightness tapered amplifiers in pulsed, quasi continuous wave (QCW) operation, seeded by a 976 nm laser diode. The maximum power of 22.7 W was achieved with > 64 % combining efficiency in a close to diffraction limited beam. We discuss turn-on dynamics of tapered amplifiers operated in pulsed mode in detail.
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https://hal.archives-ouvertes.fr/hal-02332526
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Submitted on : Thursday, October 24, 2019 - 7:28:20 PM
Last modification on : Saturday, October 10, 2020 - 2:14:02 PM
Long-term archiving on: : Saturday, January 25, 2020 - 5:41:13 PM

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P. Albrodt, M. Niemeyer, P. Crump, J. Hamperl, F. Moron, et al.. Coherent beam combining of high power quasi continuous wave tapered amplifiers. Optics Express, Optical Society of America - OSA Publishing, 2019, 27 (20), pp.27891. ⟨10.1364/OE.27.027891⟩. ⟨hal-02332526⟩

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