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Conferences > ASSL > 2023 > ATh4A > ATh4A.2

1.6 mJ Pulse Energy and 1.2 kW Average Power All-Fiber Amplifier with Diffraction-Limited Beam Quality

Yaakov Glick, Jose Pincha, Ishu Kansal, Robert Windeler, Vasiliy Lukonin, Eric Monberg, Erin S. Lamb, Lalitkumar Bansal, and Jeffrey W. Nicholson

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Abstract

We demonstrate record high energy (1.6 mJ) nanosecond pulses, as well as average powers reaching 1.2 kW and peak powers of >370 kW, with a diffraction limited beam quality of M2=1.12. This with an all-fiber amplifier using a novel 25 µm mode-field diameter Yb-doped gain fiber. The TMI threshold for this fiber was measured to be 1.8kW.

© 2023 The Author(s)

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High Pulse Energy and High Average Power All-Fiber Amplifier with Diffraction-Limited Beam Quality

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