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Conferences > CLEO_SI > 2023 > SF3H > SF3H.3

High Pulse Energy and High 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 (1.2 mJ) nanosecond pulses with peak power of >200 kW and average power of 620 W, in a fiber amplifier using a novel 25 µm mode-field diameter Yb-doped gain fiber. The TMI threshold for this fiber was measured to be 1.8 kW. This is achieved at a diffraction limited beam quality of M2=1.08.

© 2023 The Author(s)

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